SKU: 82355185519

ATS Allison Conversion Stage 4 Transmission 68RFE 15-18 Ram 6.7L Cummins 4WD

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Description

ATS Allison Conversion Stage 4 Transmission 68RFE 15-18 Ram 6.7L Cummins 4WDSometimes, the factory 68RFE in your 2015 2018 Ram Cummins 4WD just doesn't cut it. Why not put an Allison behind your Cummins engine! The Allison transmission is known for its strength and durability and in the past, installing an Allison in your Ram was an absolute headache. Not anymore! ATS has developed a complete kit with everything you need to swap your 68RFE for a built Allison Stage 4 Transmission. ATS Diesel has engineered the first fully

Sometimes, the factory 68RFE in your 2015-2018 Ram Cummins 4WD just doesn't cut it. Why not put an Allison behind your Cummins engine! The Allison transmission is known for its strength and durability and in the past, installing an Allison in your Ram was an absolute headache. Not anymore! ATS has developed a complete kit with everything you need to swap your 68RFE for a built Allison Stage 4 Transmission.

 

ATS Diesel has engineered the first fully integrated Allison transmission swap for Cummins powered vehicles. Backed by our proprietary TRANSLator technology and our exclusive, patent-pending Allison to Cummins Bellhousing, the ATS Diesel Allison Swap offers complete factory functionality from your late model Ram; from push button start to tow/haul mode, electronic range select and electronic transfer case functionality. Our revolutionary new TRANSLator can-bridge module allows the Allison TCM to communicate with the Ram ECM and offers a seamless integration of all factory options on the truck with a nearly plug-and-play installation. Our exclusive, patent-pending Allison to Cummins Bellhousing allows a perfect factory match between the Allison and the Cummins with no additional fabrication required. The all-new ATS Diesel Allison Conversion Kit includes all necessary hardware and software to install an Allison LCT1000 behind your Cummins.

 

For those of you that are not satisfied with the Dodge automatic transmission behind your Cummins engine, the Allison 6 speed swap is an excellent alternative. If you’re looking for increased reliability and a transmission that will hold under the power of the Cummins you will find that the Allison LCT 1000 built by ATS is superior to the factory transmissions offered by Dodge.

 

Due to the nature of the Ram 68-RFE having very small shafts, gear sets and clutch packs, the factory Ram transmissions require very extensive modifications and expensive hard parts to compete with a rebuilt ATS Allison 1000. These parts include the hydraulic pump, clutch packs, shafts, and torque converter modifications to strengthen it to reliably handle the massive torque of the Cummins engine. The Allison 6 speed automatic transmission comes from the factory with large shafts, clutch packs and gear sets. This gives the Allison a direct advantage over the 68-RC Dodge transmissions. The 69-RC has similar size clutch packs, shafts and gear sets as the Allison, however, it does not have an ideal gear split so the 69-RC always seems a bit “clunky” and does not handle increased power levels well. The 69-RC transmission also relies on engine derate that happens between all gear shifts, this engine derate makes for a very poor shift quality and massive drivability complaints. When all costs are taken into consideration with regards to what it takes to upgrade all of the small and under designed parts of the Dodge transmission, the upgrade to the Allison conversion could be argued as the most cost effective solution.

 

There are a few questions you should ask yourself when weighing the decision of whether to go with an ATS upgraded Dodge transmission or to replace it with an Allison conversion:

 

Is your Cummins engine modified?

 

Do you tow heavy loads for long distances?

 

Do you have over-sized tires?

 

Does your vehicle appear to be under stress with the workload you are putting it under?

 

If you answered yes to any of these questions you are a prime candidate for the Allison transmission swap.

 

The 68-RFE transmission has a fantastic gear split between its 1st through 6th gears providing an almost perfect gear ratio change. The torque converter is a PWM design allowing for precise application of the converter clutch which provides a smooth shift. Unfortunately, this is where all praise for the 68-RFE ends. The 68-RFE transmission was clearly designed to be the least expensive to manufacture. As a result, there are many elements that must be upgraded in this transmission to make it reliable and handle higher power levels. Even the transmission case is cheaply designed and must be reinforced with a large aluminum pan and transmission brace over the top to keep if from cracking in half. The 68-RFE internals are actually larger versions of those found in a Dodge Caravan transmission that originally debuted in 1989. Chrysler used this basic design and adapted it to be used behind their gas engines calling it the 545-RFE. They then made a few parts in the 545-RFE transmission a little larger again to then be used behind the Cummins which eventually became the 68-RFE that we know today. The 68-RFE can be rebuilt with upgraded parts making it a great shifting transmission but it is limited because of the small clutch packs, gear sets and shafts that make up the transmission. At the end of the day the 68-RFE is just a Gas transmission that was placed behind the massive 6.7L Cummins engine. Similar to the 48-RE, the money spent in strengthening the internals of the 68-RFE is likely better suited to be invested in the Allison conversion. If you were to spend the money to upgrade the internals of the 68-RFE, you would still be left with a transmission that has clutch packs, gear sets and shafts that are nearly half the size of those in the Allison. Another one of the benefits of the Allison is it learns your driving style, different drivers, power levels, habits etc, the Allison TCM will adapt to them all providing a smooth shift through all the ranges. Tap shifting capabilities and tow-haul are all still present as well. For the 6.7L Cummins you can use the factory shifter and for older trucks you can purchase a new shifter, which can be installed in a matter of minutes and still has all factory functionality. Overall the Allison can handle more power, with more functionality and longevity than other transmissions. An Allison swap is a solid choice whether you want it for your daily driver, heavy towing, or want to take your truck down the sled pulling track. What would be the best all around transmission for a person that tows, wants to use the power of their high horsepower Diesel, is looking for reliability above all and still would like to have the ideal shifting transmission? The Allison 1000 is the best option that is now possible behind the Cummins engine! This does not mean you can take just any Allison 1000 transmission and put it behind the Cummins engine, as great as the Allison transmission is; the stock Allison transmission does have it’s limitations and downfalls. The great news is the Allison can easily and affordably be upgraded to handle a very high level of abuse and high horsepower while providing reliability and longevity.

 

In order to properly transplant the Allison transmission into the Dodge Pickup there are many areas that need to be addressed. How the transmission is adapted to the engine, transfer case, cooler line adaptation, manual linkage, fill tube, transmission electronic control system, and driveline modifications are the basics. This is another area where ATS shines, we have taken the time to cast a “Factory fit” bell housing and extension housing to replace the GM ones found on the Allison. The new ATS castings allow the Allison to transmission to bolt directly up to the Cummins engine with out any engine modifications. Yes, this means you no longer need a different engine adapter plate, different starter, flex plate and most importantly you no longer have to grind material off of the engine block to make clearance for the starter. All of the factory wiring and fuel line brackets bolt to the original bell housing bolts as it came from the factory. The transfer case bolts up the back of the transmission and it’s positioned perfectly allowing the drive lines to line up properly.

When converting from a 68-RFE transmission to the Allison depending on the year of the truck the engine calibration has to be re-flashed to a 68-RC or 69-RC calibration. This is as easy as using the factory Chrysler scan tool and loading the original factory calibration into the truck. Once this step has been performed you can apply aftermarket tuning to your truck as you have in the past if you are after higher power levels or other engine tuning modifications. The other area where the ATS Allison conversion shines is in our electronics package. The Translator module bridges the gap between the Transmission Control Module (TCM), Body Control Module (BCM) and the Engine Control Module (ECM). When the factory Chrysler transmission is removed from the truck the BCM and ECM no longer receive information from the TCM, this causes a huge problem with the operation of the truck. A few of these issues are: loss of cruise control, loss of factory remote start, loss of factory rear view camera, speedometer out of calibration, you can not shift to 4x4 Low range, Loss of Tow Haul mode, Loss of Tap Shafter, Loss of PRND 1,2,3,4,5,6 indicator on dash. The ATS Translator module bridges all of this information making EVERYTHING work as it did from the factory. All functionality works perfectly allowing the truck to drive and operate as it did the day it rolled off the showroom floor!

 

SHIPPING POLICY - Due to the size and weight of transmissions, they cannot be shipped through traditional couriers, such as UPS, FedEx, USPS, etc. and MUST be shipped via truck freight. We do not offer free shipping on transmissions, however, we do offer a very competitive rate charged at checkout checkout. Once your core transmission is ready for pick up, you just need to give us a call or send us an e-mail with your original order number and the core tag on the transmission, and we can supply you with a quote on the return shipping as that is not covered in the original shipping cost. Otherwise, we give you the option to coordinate the return shipping on your own and independently pay your courier of choice. As always, if you have any questions, give us a call or send us an e-mail.

ATS Swap Cummins to Allison Conversion Package Stage Comparison

Stage 1 Stage 2 Stage 3 Stage 4 Stage 5
Horsepower Rating 650 750 950 1050 1100
ATS built Allison LCT1000
Five-Star Torque Converter
Deep Pan Transmission Pan
Billet Input Shaft
Billet Intermediate Shaft
Billet Output Shaft
Billet P2 Carrier,
C2 Hub,
Modified P1 Sun Gear Planetary Assembly
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SKU: 82355185519

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4.2 ★★★★★
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cody
Chelsea, US
★★★★★ 5
Excellent and Incredibly Helpful — Full of Practical Wisdom
Format: Paperback
Tactics, 10th Anniversary Edition: A Game Plan for Discussing Your Christian Convictions is an excellent book and extremely helpful. It’s packed with thoughtful insights and practical “gems” that equip believers to engage in meaningful conversations about their faith with clarity and confidence. What makes this book stand out is how approachable and usable it is. The tactics are easy to understand, respectful in tone, and genuinely effective in real conversations—not just theoretical arguments. I would highly recommend this to anyone who wants to better articulate and defend their Christian convictions while remaining gracious and thoughtful in discussion.
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Reviewed in the United States on January 24, 2026
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Esther Nistor
Waukegan, US
★★★★★ 4
Christians should learn how to communicate their convictions
INTRODUCTION: KOUKL AND TACTICS Tactics is a resource for Christians who are looking to hone their apologetic skills and seeking to grow in their opportunities to evangelize more effectively. Gregory Koukl, who teaches at Biola University, is validated in the area of apologetics by many years of experience in defending the faith but also in the theological whit involved in evangelizing. Koukl is the founder of a website called Stand To Reason, which is one of the most viewed websites on apologetics. For years, Koukl has sought to help individual Christians defend their faith and share their convictions. Using tactics, Koukl attempts to challenge Christians to embody his Ambassador Model – thinking logically, loving graciously, and persuading passionately. SUMMARY The book is very easy to read. It is dividend into two parts, the first revealing a game plan for defending the faith. In the first part, Koukl is concerned with helping his readers grasp the concept of maneuvering effortlessly through conversations about religion. Many Christians feel awkward and uncertain when navigating through conversations about their convictions, and Koukl does an exceptional job of providing an infrastructure for the believer to be relieved of these tensions. PART 1: COLUMBO TACTIC EXPLAINED The main thrust of Koukl’s tactic is what he calls “Columbo”. The key to the Columbo tactic is to “go on the offensive in an inoffensive way by using carefully selected questions to productively advance the conversation” (47). The advantages of this tactic are numerous, including: the ability to start conversations, invite others in, remain neutral by asking questions, buy more time to think, and remain in control of the conversation. Koukl’s purpose in employing this tactic is to gather information. By asking “what do you mean by that?” you force somebody to think critically of their answers and their underlying convictions. Another revealing feature of the Columbo tactic is the ability to cause others to defend their beliefs. By asking “How did you come to that conclusion?” we are forcing the other person to explain their process of reasoning and how such derived conclusions were attained. The final purpose of the Columbo tactic is to lead an individual to what we want to accomplish. Do we want to inform, persuade or challenge them? Asking leading questions will help to steer the conversation, however, the one asking the questions must have some prior knowledge. Koukl encourages his readers by reminding them that this tactic must be honed over time. Pointing out the errors of our opponent in a gracious way will eventually help us determine the basis of their conclusions, and furthermore, we can lead them to think anew upon their beliefs by asking “Have you considered…?” PERFECTING COLUMBO Perfecting the Columbo tactic takes time. Those who use it should be aware of efforts from opponents’ attempts to derail them. Christians who use the tactic should always refine by rethinking their questions, reworking their own conclusions, and considering more leading questions. Christians should also be aware of assertions made by opponents. For the sake of control and clarity, Christians may refuse to answer their opponents’ leading questions. Koukl reminds his readers that it will take time to develop strong questions and convictions, but over time, the power of Columbo is unimaginable. It is like saying to somebody, “You’re naked” (102). PART 2: COLUMBO TACTIC IN ACTION In the second part of the book, Koukl unpacks Columbo and exposes the different opposing arguments. This part of the book is philosophical but simple enough for lay Christians to be able to grasp the concepts. The examples that he gives in subsequent chapters include Formal Suicide (statements that violate the law of non-contradiction), Practical Suicide (statements that are not contradictory but are self-defeating), Sibling Rivalry and Infanticide (when there are pairs of logically inconsistent objections), Taking the Roof Off (reduction ad absurdum, or a claim that leads to counterintuitive or absurd results), Steamroller (how to handle situations in which people are emotional, overpowering, or hardened), The Rhodes Scholar (defending against academic claims that object to our views), Just the Facts Ma’am (discovering when people just simply have their facts wrong). Koukl ends the book with a chapter on more helpful tips and principles for evangelistic conversations. STRENGTHS AND WEAKNESS There are several particular strengths in the book. Besides being a very simple writer, Koukl is also personable. At least from reading the book, one can tell how much time he spends with others. Koukl gives several anecdotes about his encounters. One interesting encounter took place when Koukl met a witch at a checkout line. On this occasion, Koukl tried to help the woman see that her beliefs were inconsistent with her convictions. In another encounter, Koukl describes a waitress who was “Sheepish in Seattle". Despite the funny subheading, the encounter instructed and helped readers learn how to ask pointed questions. EVANGELISM Another element of Tactics that proves helpful is Koukl’s method of evangelism. Many evangelistic programs can be either too programmatic or too simplistic. Tactics runs between these two extremes by offering an alternative. Koukl teaches his readers how to converse with nonbelievers and believers about their convictions and beliefs in an intelligible way. “Columbo” is a method that Koukl prescribes to help people gain a handle on conversations and increase their ability to reason well. This method helps people formulate good questions, gather information, and challenge the beliefs of others in a gracious and loving way. Koukl is mainly concerned with truth and helping others see the truth. His method is geared towards Christians who are serious about their faith. They'll confidently share there faith in a checkout out line or at the park. SIMPLIFYING PHILOSOPHICAL CONCEPTS Another strength is Koukls ability to successfully reduce philosophical concepts to intelligible ideas. For example, Koukl simplifies the reductio ad absurdrum argument for the reader by describing it thusly, “Taking the Roof Off,” or “to reduce a point to its absurd conclusion or consequence” (143). Then he lists several examples. An example that is very practical is the issue of same-sex marriage. Someone might say, “Same sex marriage should be instituted by the government because once upon a time, the government was wrong about interracial marriages, so it must be wrong about same-sex marriages.” Koukl might respond, “Well, the government also wanted to institute slavery, once upon a time, but slavery doesn’t exist today, so you must be wrong.” And with that, he shows the opponent the absurdity of their claim. Koukl offers helpful summarizing sections at the end of each chapter to help the reader grasp the concepts and ideas presented in each chapter. Koukl’s character is apparent throughout the book, with his desire to see people come to the truth. That in and of itself is a great strength to the book, because he essentially practices what he preaches. CONCLUSION Koukl’s desire to see people come to the truth of the gospel is very powerful throughout the book. Christians who read this and put these concepts into practice will “be able to comfortably engage in thoughtful conversations with others about your Christian convictions” (30).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2017
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B Lee
Houston, US
★★★★★ 5
Extremely helpful and applicable.
This week I received my copy of Tactics: A Game Plan for Discussing Your Christian Convictions by Greg Koukl. I was anxious to have a look at the book, as I have been following Greg Koukl's ministry of Stand to Reason for a number of years. On one hand, I was excited to see in book form what I have heard Koukl demonstrate so many times on his live radio program: an effective and gracious way to communicate one's faith in an articulate and winsome way. On the other hand, my familiarity with Koukl's Tactics audio program made me wonder if this was just a repackaging of the same material. I was thoroughly surprised. I'm a reader - but it's been a while since I have devoured a book. Tactics is an immediately practical book. The author's heart is that Christians be equipped to be good ambassadors. An ambassador has three skills: "knowledge, an accurately informed mind; wisdom, an artful method; and character, an attractive manner." Koukl describes the goal of a tactical approach - one that seeks to converse more persuasively by being thoughtful and reasonable, rather than emotional, about one's convictions. In a very balanced way, Koukl carefully introduces this approach and neutralizes some of the negative connotations that come with sharing and defending the faith. Some people immediately object at the idea of argumentation or "methods." However, Koukl summarizes a more biblical approach: "Here's the key principle: Without God's work, nothing else works; but with God's work, many things work. Under the influence of the Holy Spirit, love persuades. By the power of God, the gospel transforms. And with Jesus at work, arguments convince. God is happy to use each of these methods." Now Koukl dives into the meat of the book. He presents about a half dozen "tactics," as he calls them - each with a memorable name, such as, "Columbo," "Suicide," and, "Taking the Roof Off," among others. As he teaches you these tactics, Koukl's experience and mastery in this area immediately become evident. He is not a theorist presenting untested ideas. Instead, he is a veteran, discussing situation after situation gleaned from countless personal encounters, public debates, radio interviews, and friendly conversations. The phenomenal part is that these approaches are simple and the applications are immediately accessible to the reader. One particular insight Koukl shares should bring relief to those who feel fear come over them at even the thought of discussing their faith: you don't have to hit home runs. In fact, Koukl stresses that you don't even have to get on base. The goal is to leave them with something to think about. His advice: simply leave them with "a stone in their shoe." Navigating through the book, you will find gem after gem of wisdom. So many of the common objections that the Christian encounters are found here - but with answers that are actually useful in conversation. Although much of the substance is philosophical in nature, Koukl drops the jargon and replaces it with practical expressions. This is a handbook suitable for the layman and professional apologist alike. After passing the halfway point in the book, you will realize that you are not just learning how to steer safely through a conversation - you are learning how to think. Koukl will sharpen your thinking skills and your ability to spot fuzzy logic and faulty arguments. You will realize that this is a book about truth. By the time you reach the end (it's about 200 pages), you will be amazed at the amount of wisdom, insight, and courage you have gleaned. A second reading is definitely in order. Koukl's Tactics is endorsed by a long list of notable apologists and Christian thinkers: Norman Geisler, William Lane Craig, Gary Habermas, J. P. Moreland, Hank Hanegraaff, Jay Wesley Richards, David Noebel, Justin Taylor, Paul Copan, Sean McDowell, Frank Turek, and Craig Hazen. For those familiar with Koukl's Tactics audio program, many of the same personal encounters are cited. However, this is not a repackaging of old material. I found the book to be immensely helpful even after recently re-listening to Greg Koukl's Tactics in Defending the Faith audio program. In addition to the expanded and fresh material, I found the summaries at the end of each chapter to be particularly helpful. Greg Koukl's Tactics: A Game Plan for Discussing Your Christian Convictions is not designed to give you pat answers or lists of facts to bring to your conversations. Far from being "another evangelism book," Tactics is a book that will challenge you to be a critical thinker, a logical communicator, and a gracious ambassador for Jesus Christ.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2009
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David C. Leaumont
Natrona Heights, US
★★★★★ 5
This is the all-important second-side of apologetics
Apologetics requires two sides of a person - the knowledgeable reasoning side and the compassionate, calm-but-tactical side. Both are key, whether you are a presuppositional apologist or an evidentiary apologist. Regardless of the facts you put on the forefront of your apologetic, this book helps make your conversations more fruitful, last longer, and reach more people for Christ. This book is a supreme source to help develop this second side. Greg Koukl is an apologetics professor at Biola University and has his own radio talk show where he defends the Christian worldview. He also conducts an online ministry at str dot org. (STR = stand to reason) The focus of this book is to provide easy-to-remember and usable tactics for discussing your faith and conversing with people of different viewpoints in ways to open their minds to the Christian worldview. Koukl begins with a discussion on the need to keep discussions from being trench warfare. Too many discussions about Christian apologetics are cut short by harsh arguments that do little. Christians must be all things to all people and find a way to share the faith while not scaring off those we want to have hear it. In short, Koukl writes "If anyone in the conversation gets angry, you lose." Greg's underlying principle is not to take everyone to the cross with every discussion. Some people are way too far away from belief to make such a trek in such a small amount of time. The need to help open the other person's mind to Christ and plow the field to make the ground of the heart fertile is most necessary in many people. That is why he focuses on putting a rock in everyone's shoe. What he means by this is he wants to put an idea in their head that they will likely spend a lot of time thinking about. He wants to be the rock in the shoe that noone forgets about. Through this, he plants a seed of thought in the person and leaves the rest up to God. While the intent of this book is not to give ready-made answers to specific arguments critics have, there are specific examples he discusses while he is giving examples of how a tactic might work. For example, the belief in moral relativism is discussed when he discusses the tactic of "Practical Suicide" (an argument that cannot stand because it is self-refuting.) The reviews of this book included inside the cover are a who's-who of Christian apologists. And, after reading the book, I see what they were all raving about. This book is one of the top apologetic resources I have read, and it serves as a practical guide for all discussions. I give this book my highest recommendation for anyone interested in Christian apologetics regardless of your experience or knowledge level. This book will be suc a huge blessing to all Christians and to their ability to discuss Christ more effectively.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2010
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Verified Purchase
Phillips Family
Carnegie, US
★★★★★ 5
great book
Gregory Koukl does an excellent job of equipping believers to engage in meaningful and respectful conversations with skeptics. Rather than teaching readers how to win arguments, he provides practical tools for asking thoughtful questions and fostering productive dialogue. This book not only prepares Christians to defend their faith with confidence, but it also offers valuable insights into effective communication in general. As I read, I found that it strengthened my understanding of my own beliefs and helped me think more deeply about why I believe what I do. The result is a greater confidence in sharing and discussing faith with others. I highly recommend this book to anyone who wants to become a more effective communicator and a more thoughtful ambassador for Christ.
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Reviewed in the United States on June 3, 2026

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