Volume: 1/2 quart over stock
Dimensions:
Click here for dimensions.
Number of Bolts: 10
Benefits:
PML designs and manufacturers differential covers with these benefits.
- Curved shape similar to stock cover for correct fluid movement
- Maintains clearance for fitment
- Drain and magnetic drain plug included
- Heavy duty, sand cast aluminum
- Finned for heat dissipation
- Extra capacity
- Thick, machined flat gasket flange for a secure seal
- Fill/level check is at the same location as the stock cover fill/level check
- Made in USA
This is a new differential design from GM. Ring gear is probably 8.6 to 8.9 inches.
The classic GM 10 bolt 8.5, 8.6 inch ring gear differential cover found on 1970s to 2021 cars, trucks and SUVs, has a different shape and bolt hole pattern although it looks very similar to this one. See PML part number 6082 for an example of the older GM 10 bolt differential.
Stock Cover
Pictures of stock cover outside, inside and box label:
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- 2023 and newer GMC Canyon 2.7L Gas, AT4, AT4X, Denali, Elevation
- 2023 and newer Chevrolet Colorado 2.7L Gas, LT, Trail Boss, WT, Z71, ZR2
Vehicle configurations vary and PML cannot guarantee fitment so please verify differential and clearance before ordering.
See the SPECIFICATIONS section for information on the GM gasket and cover that correspond to this PML differential cover and how the GM factory cover compares to this PML cover.
2024 Canyon AT4X
Our thanks to Steve for working with us on this differential cover. These pictures are from his test installation. PML updated the design to improve fitment based on Steve's feedback. He installed this cover on his 2024 GMC Canyon AT4X 4WD truck with locking front and rear differentials.
2024 Canyon
new PML diff cover and fluid
PML diff cover and stock cover
PML diff cover installed
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Gasket
PML designed this cover to work with the factory OEM gasket. The GM AC Delco part number is 8572-1785.
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Drain, Fill/Level Check/and Optional 1/8 NPT
The fill/level check is at the same location as with stock cover for accurate fluid level. The drain is on the bottom so all the fluid comes out allowing the differential to be serviced without removing the cover. Optionally, PML can drill and tap a 1/8 NPT hole for a temperature sending unit. This would be for an aftermarket temperature gage. There is a custom machining charge.
Fill,Drain and Optional 1/8 NPT
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Included With PML Diff Cover
PML includes new mounting bolts, a plug for the fill/level check hole, and a magnetic drain plug.
hardware included
hardware included
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Inside of PML Diff Cover
This PML cover has a curved back shaped similar to the factory stock cover. This picture of the inside shows the stock gasket bolted on to verify the bolt hole positions.
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Made in USA


