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1964-72 GM 12-Bolt Rear End Differential Axle Cover

1964-72 GM 12-Bolt Rear End Differential Axle Cover
1964-72 GM 12-Bolt Rear End Differential Axle Cover

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Q & A

What's in the Box

Add some visual attitude to your rear axle with these chrome differential covers. They're stamped from heavy-gauge steel to ward off those pesky oil leaks, and chrome plated for long lasting good looks.

GM 12-Bolt Rearend Differential Cover


  • Most 1964-72 GM corporate axles



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Red Line 58204 Heavy Shockproof Synthetic Gear Oil, 1 Quart

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Ideal for use in sprint, midget, and dirt late model differentials as well as in rear ends using spools or lockers.

  • Fully-synthetic gear oil formula created from polyol ester base stocks offers excellent lubrication under extreme conditions
  • High viscosity-index to provide relatively constant viscosity and film thickness with varying temperature change
  • Ester base stocks and friction modifiers provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears
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  • Exceed API GL-5 specifications
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12 Bolt GM Rear End Differential Cover Gasket

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