SKU: 38010701211

MAG'S EXTREME MUSTANG LOWER TORQUE BOXES

Sale price$303.75 Regular price$337.50
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

MAG'S EXTREME MUSTANG LOWER TORQUE BOXESMAG'S EXTREME Adjustable Instant Center PRO BOX The finest strongest Mustang replacement Torque box available Some of the features include: Laser cut from . 125 mild steel and features . 250 Chrome Moly adjustment brackets. Completely tig welded in a jig fixture to assure quality and fit. 9 available adjustment holes to fine tune your instant center. The center hole is in the stock location for class rules that require stock mounting points. Exclusive

 MAG'S EXTREME Adjustable Instant Center  PRO BOX 

The finest/strongest Mustang replacement Torque box available

 

Some of the features include:

 

  • Laser cut from .125” mild steel and features .250 Chrome Moly adjustment brackets.

  • Completely tig welded in a jig/fixture to assure quality and fit.

  • 9 available ½” adjustment holes to fine tune your instant center.

  • The center hole is in the stock location for class rules that require stock mounting points.

  •  Exclusive open design adjustment brackets allow easy Instant Center adjustments and set-up.

  •  Laser cut adjustment holes for precise tolerance.

  • Included hardware: ½” grade 8 bolts with AN washers and lock nuts, plus 3/4" DOM bolt sleeve and rod end spacers.

  • Custom offset control arm/rod end spacers available upon request at no additional charge.

  • 3/4" DOM sleeve steps up the 1/2" bolt diameter to 3/4", making it much stronger then 5/8" bolts and hardware.

  • Our exclusive design works with both mini tubbed cars and with stock wheel tubs. It does not intrude into the wheel tub area like some designs.

  • Lower edge of box wraps around the frame rail to promote additional strength and ease of installation alignment.

  • Reduced cross section width for lighter weight while maintaining superior strength.

  • Boxes have 1/8 thick welding ledge around perimeter to make it easier to weld to the stock sheet metal areas of the car such as the OEM floor and rocker panel.

  • Inner frame rail side gusset to allow easier access to bolt for adjustment.

  • Boxes are constructed for ease of installation and alignment. In most cars they slide right in place with no modifications after removal of OEM torque boxes unless the car has been damaged is this area.

  • Adjustment holes will work with a wide selection of ride heights.

  • They are only intended for use with lower control arms that have a ¾” rod end on the box end, or on both ends. They will not work on control arms that are solid mount in the front, IE poly bushing type.

  • Welding required

  • 1/4" Doubler Plates available for $100 upcharge
  • JCR CHASSISWORKS NO LONGER MANUFACTURES/SELLS THE JCR LOWER  AND UPPER TORQUE BOXES FOR THE MUSTANG. WE HAVE SOLD THE PRODUCTION LINE AND RIGHTS TO MAG's FAB WORX. THEY CAN BE REACHED AT (662) 255-6052 FOR INFO AND ORDERS. YOU CAN EXPECT THE SAME QUALITY AND SERVICE FROM MAGS!

                                                                   

           The JCR boxes are THE ORIGINAL  non-OEM style/configuration replacement box. Do not fall for inferior copies! Our boxes are in many of the biggest name, fastest, record setting, class winning cars on the planet. They have been .99X 60' on a  275 radial

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: 38010701211

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Lisa Carlson
Grantham, US
★★★★★ 5
Comfortable
Size: Small, Color: B004
Great Value , Sizing is as marked. Great color and fit.
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Reviewed in the United States on May 23, 2026
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Kim Mayes
Houston, US
★★★★★ 5
Perfect for us BBWs
Size: 3X-Large, Color: B002
I love the feel of these underwear. They are true to fit as well. I am 340lbs and bought size 3xl. They are comfortable and not tight in the legs.
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Reviewed in the United States on April 5, 2026
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Thrifty Tiffy
Houston, US
★★★★★ 4
Nice for the price
Size: Medium, Color: B004
I really like the LALESTE Women’s Boyshort Underwear overall! They’re super comfortable, soft, and have great full coverage—perfect for everyday wear. The material feels stretchy and smooth, and they stay in place without digging in or riding up. Definitely a solid option if you like a more covered, secure fit. My only downside is that they are a bit too high-rise for my personal preference. They come up higher than I expected, so if you prefer a lower-rise fit, just keep that in mind. Other than that, the quality and comfort are great, and I still find myself reaching for them often!
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Reviewed in the United States on March 23, 2026
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Ash
Phoenix, US
★★★★★ 5
Love them
Size: X-Large, Color: B004
Love them! Super comfortable, love the design and stretchiness!
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Reviewed in the United States on May 20, 2026
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J. Howard
West Palm Beach, US
★★★★★ 5
Comfy and wash well
Size: XX-Large, Color: B004
Very comfortable and breathable; wash and dry well in machines, no shrinkage. Good quality and value.
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Reviewed in the United States on April 28, 2026

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