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Frontline Fabrication Girdled Rear Diff Cover

Girdled diff covers are where Frontline Fabrication started. After fabricating hundreds of them out of welded steel, we finally graduated to CNC milling capabilities and these are the result. Today, there are girdled diff covers on most all of the quickest and fastest DSM’s in the country with a nearly flawless track record for preventing failures. We’re proud to say that these diff covers have gone as fast as 8.12 on Boostin’ Performance’s Red Demon, with numerous 1.2x 60 foots.

For those that aren’t familiar, these diff covers utilize two swivel-foot load bolts that put pretension on the bearing caps to eliminate deflection. This keeps the ring and pinion running true and helps tremendously to prevent failures. We mimicked the stock baffling on the inside and added a nice -10AN ORB port for the fill plug for a leak-free seal.

*This product does not qualify for discounts at the time. If you have a discount code that will work, we will send an invoice asking for the discounted amount before your order is processed.

All Frontline Fabrication parts have an average lead time if at least 8+ weeks.

The only exception to this is the Frontline Fabrication Ball Bearing Gerotor Oil Pump, as these take 6-10+ MONTHS to make and ship!

  • Machined 6061 Aluminum Construction
  • Stock style breather baffling
  • 1/2-13 Swivel Foot Load Bolts
  • Includes Grade 12.9 Hardware
  • -10AN Fill Plug

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Frontline Fabrication

Frontline Fabrication is a top-tier manufacturer of high-quality, performance-focused automotive components, specializing in custom fabricated parts. Known for their precision craftsmanship and attention to detail, Frontline Fabrication products are designed to enhance durability, performance, and aesthetics. Trusted by enthusiasts and professionals alike, they deliver reliable solutions for demanding automotive applications.

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