PML Differential Cover for GM 8½" and 8 5/8" Ring Gear, 10 Bolt, Vertical Fins
Part Number 6082
PML makes two differential covers for the GM 8½, 8 5/8 inch 10 bolt rear end. See both PML GM 8½" rear differential covers to compare.
Black powder coating
Click on the button under the bolt size you need to order the differential cover. Scroll down for more information on bolts.
Volume: 0.5 qt. over stock, approximately
Dimensions: Click here for dimensions. A separate window or tab will open.
Applications for a PML GM 10 Bolt Differential Cover
This PML differential cover fits the rear end differential on many GM, GMC, and Chevrolet vehicles. Be aware that for each model and year there may be more than one rear axle possible. See also GM 10 bolt 7.5, GM 14 bolt 9.5, and GM 12 bolt 9.5.
Typical applications for this differential include the following:
Configurations vary. Always check your vehicle to verify differential and clearance. Police vehicles generally have less clearance.
GM 8.2 10 Bolt: These rear end covers can also fit on older vehicles with the GM 8.2 differential. For example:
See our GM 8.2 web page for more information.
PML GM 8.5 cover with horizontal fins and stock GM 8.2 cover show together. Bolts hole locations at 6 and 12 o'clock are slightly different.
4WD Front Applications: See PML Part Number 6077 for GM Front 10 bolt 8 1/2" ring gear differential found on some 4WD Chevy and GMC SUVs and trucks. PML part number 10815 and 6082 are for the rear differentials.
Temperature Sensor Port Option
The boss on the side can optionally be machined for temperature sensor for $45 additional (call to order machining and let us know your sensor thread size).
PML includes mounting bolts with all differential covers. PML provides bolts that are longer than the stock bolts since the flange on PML's cover is much thicker than stock. The bolts with the stock cover will not work.
GM has used four different bolts on these differentials so to complete your order, we need to know which bolts you have. These differentials have used both metric and standard cover bolts. The bolt length has not been consistent either. When ordering one of these covers, you will need to pull one of your stock bolts out (a top bolt is best) and measure the length and determine whether it is metric or standard.
We know this is a hassle, but we do not want to send the wrong bolts or charge everyone a lot of extra money to cover sending all possible bolts with each cover. Watch the video for more informations on checking your bolts.
Gasket Information for a PML GM 10 Bolt Differential Cover
PML machines the gasket surface of our differential covers completely flat. The flange surface of the differential housing is also machined flat. A thin bead of RTV silicon sealant makes an excellent seal between two machined surfaces. If you prefer to use a gasket, we have had customers recommend the Fel-Pro RDS 55028-1 gasket.
Matching Front Cover for 4WD
For 4WD trucks and SUVs with the GM 8.5, 10 Bolt front end, PML offers a matching differential cover.
See the GM 8 1/2, Front 10 Bolt, Part Number 6077
The matching front cover is available in all finishes. Shown in black powder coated.
PML Differential Cover Compared to Stock
These images show this PML differential cover compared to the stock cover.
Installation on a 1993 Chevy Silverado
Damon installed this PML 10 bolt rear differential cover on his 1993 Chevy Silverado 6.3L 383 SS truck. Both his truck and his dog are ready to go for a ride.
Installation on a 1996 Impala SS
Installation and video by Hoagie's Garage. This Impala had oem bolts size 5/16in-18x7/8 bolts on the stock diff cover. Thanks to Hoagies Garage for the images and a great video.
1996 Impala SS
PML differential cover on a 1996 Impala
Plenty of space behind PML rear differential cover on a 1996 Impala SS
Drain on PML 10 bolt GM rear differential cover on a 1996 Impala. Magnetic drain plug included with cover.
For a larger picture, please click one of the above images. A separate window will open showing a bigger picture. (The larger pictures take a minute to display.)
PML Differential Cover Features:
Learn more about finishes and construction of PML parts.
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