12 Bolt GM Rear End Differential Cover Gasket
GM 8.875 Inch 12-Bolt Car
Replace your stock rearend cover gasket with these reusable gaskets. Made of top-quality materials, these differential cover gaskets are designed to ensure a leak-free seal.
12 Bolt GM Rearend Differential Cover Gasket
- Pressed composite
- Fits GM cover (part number 550-3784)
- 12 bolt GM differentials
- Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
More Like This
Mr Gasket 84A Rear End Differential Gasket, GM 12 Bolt
Mr Gasket 84 Rear End Differential Gasket, 10 Bolt, 8.2 GM
GM 8.2/8.5 Inch 10-Bolt Differential Cover Gaskets
Mr Gasket 84B Rear End Differential Gasket, 10 Bolt, 8.5 GM
Mr Gasket 41G01MRG Differential Cover Gasket, GM 8.875 12 Bolt
Q & A
Tim talks about our Winters quick change rear end & components.
Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.
Read up on GM 10 bolt ring and pinion installation instructions. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear.
Need help with rear end identification for your classic car? Learn how to identify 9 inch Ford housings and how to measure your axle with our diagrams.
In this Tech Tip, John responds to a customer looking to upgrade the 8” stock differential in his Cougar to a 9” open diff.
A short article explaining the main differences between open and limited slip differentials.
When it comes to a traditional style build on an early hot rod it just has to be rolling on a solid front axle of some sort. In this buyer's guide we take you through I-beam and round tube solid axles, spindle choices, radius rod needs, and more.