SKU: 54104957119

B&M Hi-Tek Aluminum Differential Cover for GM 8.875-inch 12-bolt Truck - 70504

Sale price$150.72 Regular price$167.47
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

B&M Hi-Tek Aluminum Differential Cover for GM 8.875-inch 12-bolt Truck - 70504Overview: Our engineers designed the line of Hi Tek differential covers to not only look good but address a number of weaknesses of the factory stamped steel covers. First, they started by constructing the covers of thick A356. 0 T6 aluminum, which dissipates heat much faster than the factory steel unit keeping the fluid temperature lower under high stress loads vs. a steel cover. Then for added durability, we added a reinforced center bar for extra

Overview:

Our engineers designed the line of Hi-Tek differential covers to not only look good but address a number of weaknesses of the factory stamped steel covers. First, they started by constructing the covers of thick A356.0-T6 aluminum, which dissipates heat much faster than the factory steel unit keeping the fluid temperature lower under high-stress loads vs. a steel cover. Then for added durability, we added a reinforced center bar for extra strength along with load bolts to help prevent bearing cap deflection under severe loads. The internal shape of the cover retains the smooth round back internally to help keep the fluid flow going over the ring gear to properly lubricate the gears and bearings. Additional features include a magnetic drain plug for catching ferrous metal particles, machined B&M logo and all necessary hardware and easy to follow detailed instructions for a quick and simple installation you can do at home. Note: Gasket not included.

Features:

  • Load Bolts for Additional Support for Bearing Caps
  • Magnetic Drain Plug for Easy Servicing
  • Additional .50-quart Fluid Capacity
  • A356.0-T6 Aluminum Construction
  • Over 65 Years of B&M Quality
  • Lifetime Limited Warranty
  • Machined B&M Logo

Application:

Year Make Model Submodel Engine Size
1967 - 1982 Chevrolet K10 Suburban
1967 - 1974 GMC K15/K1500 Suburban
1967 - 1974 GMC K25/K2500 Suburban
1967 - 1974 GMC C15/C1500 Suburban
1967 - 1974 GMC C25/C2500 Suburban
1975 - 1978 GMC K15 Suburban
1979 - 1982 GMC K1500 Suburban
1975 - 1978 GMC K25
1979 - 1981 GMC K2500
1975 - 1978 GMC K25 Suburban
1979 - 1982 GMC K2500 Suburban
1969 - 1987 Chevrolet Blazer
1975 - 1982 Chevrolet K5 Blazer
1964 - 1974 Chevrolet G10 Van
1969 - 1974 Chevrolet G20 Van
1964 - 1974 Chevrolet K10 Pickup
1973 - 1974 Chevrolet K20 Pickup
1969 - 1981 Chevrolet K20 Suburban
1964 - 1966 Chevrolet Suburban
1967 - 1974 GMC C15/C1500 Pickup
1973 - 1974 GMC C25/C2500 Pickup
1967 - 1974 GMC G15/G1500 Van
1967 - 1974 GMC G25/G2500 Van
1970 - 1982 GMC Jimmy
1966 - 1974 GMC K15/K1500 Pickup
1973 - 1974 GMC K25/K2500 Pickup
1964 - 1966 GMC Suburban
1967 - 1982 Chevrolet C10 Suburban
1975 - 1982 Chevrolet C10
1975 - 1981 Chevrolet C20
1969 - 1981 Chevrolet C20 Suburban
1975 - 1982 Chevrolet G10
1975 - 1981 Chevrolet G20
1975 - 1982 Chevrolet K10
1973 - 1974 Chevrolet C20 Pickup
1975 - 1978 GMC K15
1979 - 1982 GMC K1500
1964 - 1974 Chevrolet C10 Pickup
1975 - 1981 Chevrolet K20
1975 - 1978 GMC C15
1979 - 1982 GMC C1500
1975 - 1978 GMC C15 Suburban
1979 - 1982 GMC C1500 Suburban
1975 - 1978 GMC C25
1979 - 1981 GMC C2500
1975 - 1978 GMC C25 Suburban
1979 - 1981 GMC C2500 Suburban
1975 - 1978 GMC G15
1979 - 1981 GMC G1500
1975 - 1978 GMC G25
1979 - 1981 GMC G2500

Specs:

Bolt Count 12
Bolt Pattern GM 8.875 Truck
Brand B&M
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Required Yes
Call Out Size (in) 3.27
Carrier Main Cap Support Yes
Color/Finish Raw Aluminum
Drain Plug Included Yes
Emission Code 5
Filler Plug Included Yes
Gasket Included No
Material A356.0-T6 Aluminum
Product Type Differential Cover
Thickness (in) 3.62
Warning California Proposition 65
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54104957119

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eff me
Lexington, US
★★★★★ 3
great for what im doing. maybe not as good in a vehicle though
Size: 36 sqft
decent product. not as thick as typical sound deadening but definitely cheaper. and for my application, i didnt need a name brand thicker material. i am putting it on our heat and ac vent and intake pipes during our remodel. sound travels from room to room in our old house through these vents and pipes so a little sound deadening goes a long way
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
M
Verified Purchase
Miguel
Lake Worth, US
★★★★★ 5
Quality
Size: 36 sqft
Good item
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Reviewed in the United States on May 30, 2026
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 2
Buy the individual cross cut sheets, not these rolls.
Size: 36 sqft
I ordered two different types, individually cross cut foil rectangular pieces and these rolls both containing 36. sq. ft. The cross cut sheet blows this away. This stuff is much thinner, much less butyl rubber, much flimsier foil, and needs twice as much to have the same effect. Once you put it on, you cant remove it. The other brand's 2mm is much thicker than this.
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Reviewed in the United States on June 3, 2026
V
Verified Purchase
VanillaPepper
Birmingham, US
★★★★★ 5
Cheap Insurance Against Headliner Failure
Size: 4-pack
Cheap Insurance Against Headliner Failure If you’ve ever owned a Jeep with a hardtop, you already know that heat, cold, humidity, and constant temperature swings can be tough on adhesives over time. Even when replacement headliner kits include their own adhesive, I still like having a high-quality automotive adhesive on hand for extra peace of mind. This 3M product has been one of my go-to choices for headliner work because it is specifically designed for automotive environments where materials are exposed to extreme summer heat and winter cold. The last thing anyone wants is to spend time installing a headliner only to have corners start sagging or sections pull away months later. The spray pattern is consistent, the adhesion is strong, and it provides the confidence that the installation will hold up long-term. I have found it especially useful for Jeep hardtops, where temperature fluctuations can be much more extreme than in a traditional vehicle. The cans arrived well packaged, and having multiple cans on hand is convenient for larger projects or future repairs. For Jeep owners, restorations, headliner repairs, upholstery projects, or anyone wanting a little extra insurance against adhesive failure, this is a product I would not hesitate to keep in the garage. #FoundItOnAmazon #JeepLife #JeepJKU #HeadlinerRepair #3M #AutomotiveProjects #GarageEssentials #DIYGarage #AmazonFinds #JeepMods #AutomotiveMaintenance
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Reviewed in the United States on May 30, 2026
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M. Corselli
Birmingham, US
★★★★★ 5
Good n sticky
Size: 4-pack, Size: 4-pack
Used almost four cans for install of convertible top on Super Beetle.
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Reviewed in the United States on May 2, 2026

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