Secure Checkout
Due to high order volume, please expect a lead time of 7 business days on all new orders.We apologize for the inconvenience.
Free Shipping On Qualifying Orders Over $250!
Your Shopping Cart Is Empty

Secure Checkout

SKU: R1266 14 Bolt Differential Cover

14 Bolt Differential Cover
Click image to zoom
Purchase 14 Bolt Differential Cover
  • 14 Bolt Differential Cover

  • ★★★★★ ★★★★★ 19 reviews
  • Part Number: R1266
  • Shipping Weight: 21.00 pounds

  • $163.00 $138.55 $163.00Additional 15% OFF!

  • This Product Qualifies for FREE Shipping on Orders Over $250!
  • In Stock

Corporate 14 Bolt 3/8" Differential Cover 

Specifically designed for the Corporate 14 Bolt axle found in Chevy 3/4 Ton Suburbans, 3/4 & 1 ton GM trucks, this cover is built to take a beating and keep on rolling.

Crafted from A50 plate steel with a 50,000 PSI tensile strength, this cover is tough, it's a fortress of steel, specifically crafted to handle the intense demands of rock crawling. The 1 piece 3/8" (.375") plate steel cap is bent 8 ways and welded to a 3/8" ring, making it virtually indestructible compared to the 1/4" cap used by our competitors.. And after welding, the mounting surface is machined perfectly flat for an unbeatable fit.

But what does all this mean for you? It means you can tackle any obstacle on the trail with confidence, knowing that your differential is protected by a cover that can handle the the most grueling conditions. Whether you're tackling the Rubicon, or tearing through Johnson Valley, this cover is built to withstand it all.. And with easy installation and compatibility with full float 14 bolt axles and ribbed 14 bolt axles (just check your bolt size before ordering), this cover is a no-brainer for any serious rock crawler. So don't settle for a weak differential cover - get the one that's up to the challenge!

  • Attention! Prior to purchasing, Please verify the specific type of axle you have as this item is not compatible with the AAM rear axle. Here is the AAM cover GM / Dodge AAM 11.50 Differential Cover
  • We're so confident in the quality of our products that we offer a LIFETIME GUARANTEE on all of our differential covers.
  • 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 either (3/8) or (M8) 12 point bolts with washers

Write Review
★★★★★ ★★★★★
4.84/5 Stars out of 19 Reviews
Pages 1   2   3   4
Nice Cover
Zach (MA) | October 3rd, 2022
Excellent cover, very beefy and welds look great. Went to install it the night before a big wheeling trip and half of the holes didn’t line up with the threaded holes in the housing. So I drilled out all of the holes 1/16 bigger and I got it to fit. Overall, awesome cover just wish it bolted right up without having to modify it
Robert Alvarado (CA) | May 22nd, 2022
Great heavy duty, solid cover. Side holes were off by a tiny bit, didn't match correctly. Really hard to bolt to diff. But awesome cover.
Don't question, just buy it!
Bryan Johnson (TX) | March 21st, 2022
If you think you're on the fence about whether or not you need a cover this bomb proof, just buy it and never worry about what your diff could be hitting because it won't matter with this cover!
Unbeatable, but beatable!
Parker (MD) | January 23rd, 2022
Incredible covers. Nearly Indestructible. I will ALWAY buy ruff stuff diff covers over others. Buy one and be done (until you swap axles or build another rig... Only thing i would like to see is a fill hole. Factory is in the diff itself, but those plugs can be a pain. Thanks for another awesome product!
Outstanding Prodict
MARK W HILL (FL) | September 21st, 2021
3/8 steel isn't quite FMJ proof however its not gonna get a hole poked in it like a stock tin cover or those silly aluminum covers. GM Corp FF is my favorite rear end... This is the first cover that's worth of installing over stock.
  • RuffStuff Differential Covers

⚠ 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
Rate Product