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Item specifics:
- Type: Differential Cover and 8.5" & 8.6" Ring Gear and 10 Bolts
- Part Number: HRCGM85BK
- Placement on Vehicle: Rear
- Bolt Quantity: 10 Bolts
- Material: High Grade Die Cast Aluminum
- Finish: Black (Powder Coated)
- Drain Plug: 1/2" NPT
- Bolts Size: 5/16”-18 x 1”
Noted:
- No fill in hole in cover
- Not applicable to 8.6 differentials from 2007 and later versions, these differentials require filling holes on the cover and require M8x1.25 metric bolts.
Fitment:
- For Chevy / GM Intermediates (all A-B-C-G-K-0 Axles) 1964-1995
- For Chevy / GMC 1/2 Ton 2WD / 4WD Rear ( Will Not Fit 64-70 Trucks with Leaf Springs) 1964-1987
- For Chevy/GMC 1500 2WD and 4WD 1/2 ton trucks (rear) 1988-2002
- For 2WD and 4WD Blazers and Jimmys (rear) 1988-1992
- For 2WD and 4WD Suburbans 1/2 ton (rear) 1988-1999
- For 2WD and 4WD Tahoes and Yukons (rear) 1994-1999
- For Sierra 1500 1/2 Ton 2WD / 4WD with 8.5 R.G Rear 1999
- For Silverado 1500 1/2 Ton 2WD / 4WD with 8.5 R.G Rear 1988-1999
- For Camaro Z28 and Iroc with 8.5" ring gear 1982-1992
- For Camaro V8 (will not fit heavy duty) 1993-2002
- For Buick Grand Nationals 1984-1987
- For Firebirds with V8 engines 1993-2002
- For Monte Carlo SS 1983-1987
- For Olds 442 with 8.5" ring gear 1983-1987
Rear Differential Cover
Rear Differential Cover
Rear Differential Cover
10 Bolts
LKS
Reviewed in the United States on August 2, 2024
Looked great out of the box. Got the sealant and their gasket on and started to get the supplied hardware on. All the bolts were too short. So I scrambeled around the shop to try to find 10 1 1/4" 5/16-18 bolts. Got 9 in, not the top one. Next day had to buy new stainless hardware to match the look I wanted from the original ones. $25. Then needed a new 10 bolt gasket . $12. Got home got all set again and more trouble getting all 10 bolts in. Could not do it. All the holes in the new cover do not match up with the rear end. The holes are just enough offset where it just wont work. Super frustrating. This does not look like a complicated piece to make.
Jose L. Trevizo
Reviewed in the United States on April 4, 2024
Es un articulo de calidad y lo utilice en una de mis camionetas .
Dan
Reviewed in the United States on December 28, 2023
I got the first one with no gasket, I sent it back for a replacement then received the second one still with no gasket. Quality of part seems ok, cast aluminum kinda thick.
jbA320
Reviewed in the United States on November 7, 2023
The diff cover does not fit between the axle and sway bar. The sway bar impacts the cover.
Joseph C Lent
Reviewed in the United States on November 28, 2023
It looks like a quality piece
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