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SKU: R1266 14 Bolt 3/8" Differential Cover

14 Bolt 3/8" Differential Cover
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Purchase 14 Bolt 3/8" Differential Cover
  • 14 Bolt 3/8" Differential Cover

  • ★★★★★ ★★★★★ 14 reviews
  • Part Number: R1266
  • Shipping Weight: 17.00 pounds

  • $149.95

    Add Lube Locker Gasket?:  
  • In Stock

Corporate 14 Bolt 3/8" Differential Cover 

This is our basic differential cover, we see it as the only one worth making. The Corporate 14 Bolt axle is found in Chevy 3/4 Ton Suburbans, 3/4 & 1 ton GM trucks, what they end up in is up to you. The differential cover is a 1 piece 3/8" (.375") plate steel cap bent 8 ways then welded to a 3/8" ring! One of the reasons it is so strong is that we manufacture it out of A50 plate steel, thats 50,000 PSI tensile strength. After welding, the mounting surface is machined absolutely flat for a perfect fit! It's a great addition to the already near bombproof 14 bolt axle.

Will fit full float 14 bolt axles and will mate up fine with your ribbed 14 bolt axle. However, the additional bolt kit that we sell WILL NOT work with the Ribbed style 14 bolt. You will need to reuse your factory bolts (if they are long enough) or purchase new metric bolts with thread pitch (M8 X 1.25).

  • Ring and Cover are 3/8" thick
  • Plate steel CNC bent 8 ways
  • Machined absolutely flat for a perfect fit
  • All seams welded inside and out
  • Optional bolt kit comes with (3/8) 12 point bolts with washers

(This will not fit the AAM rear axle, it is your responsibility to verify which axle you have and purchase accordingly) Here is the AAM cover GM / Dodge AAM 11.50 Differential Cover (

Write Review
★★★★★ ★★★★★
4.93/5 Stars out of 14 Reviews
Pages 1   2   3
Holy Diff Covers!!
Mikel M (Oxnard, CA) | April 12th, 2021
Beefiest, most beautiful differential covers I’ve ever seen. Makes any man’s hands look like a toddler’s.
Good looking and heavy duty
Andrew Escalona (FL) | February 7th, 2021
Great cover, beautiful welds. Can really take a beating. Definently get it with the bolts really nice good quality bolts. You won't be disappointed.
Papa Dar
Darwin Lamb (UT) | January 19th, 2021
These Dif Covers are awesome!!! They are tuff and built very strong. High quality craftsmanship. Highly recommend to anyone that is going to put their Jeep through the trials.
Verified Buyer
David Bear (Coudersport, PA, US) | April 29th, 2020
After 5 years of abuse it is as good as new. Nice flat sealing surface. High quality steel and welds. Top of the line diff cover. Highly recommend. You will not be disappointed
Verified Buyer
Great cover! Great purchase!
Adam Sarosi (Silver Springs, NV, US) | December 2nd, 2017
Cover is just as strong as it looks. Welds look very good, machining looks good. Overall great quality! Arrived a day before it was supposed to as well. Will definitely buy from again!
  • RuffStuff Differential Covers

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⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer. For more information, go to
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