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B&M 71502 Cast Alum Differential Cover, GM 8.2/8.5/8.6, BLK

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B&M 71502 Cast Alum Differential Cover, GM 8.2/8.5/8.6, BLK
B&M

|

#20071502

B&M 71502 Cast Alum Differential Cover, GM 8.2/8.5/8.6, BLK

  • Features an A356.0-T6 aluminum construction
  • The load bolts provide additional support to bearing caps
  • Has a total of 0.4 quarts extra fluid capacity
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$337.95

/each

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$371.95

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Product Summary

GM 8.2 Inch 10-Bolt Chevy 64-72, GM 8.5 Inch 10-Bolt

  • Features an A356.0-T6 aluminum construction
  • The load bolts provide additional support to bearing caps
  • Has a total of 0.4 quarts extra fluid capacity
  • Special cooling/strengthen ribs keeps temperature lower
  • Engineered to significantly increase the fluid capacity and dissipate heat much faster than stock

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Key Specs

MFG. Part #71502
BrandB&M
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B&M 71502 Details

B&M Cast Aluminum Differential Covers are designed to strengthen the differential by preventing case distortion and ring gear & bearing cap deflection. Constructed of military grade (MIL-A-8625) black anodized A356.0-T6 aluminum, these rugged covers significantly increase the fluid capacity and dissipate heat much faster than the stock factory unit to prolong the life of your ring and pinion gears. Additional features include an engraved B&M logo, drain and fill port locations, a magnetic drain plug for catching ferrous metal particles, and complete hardware and installation instructions.

  • A356.0-T6 Aluminum Construction
  • B&M Logo Engraved
  • Load bolts provide additional support to bearing caps
  • 0.4 quarts extra fluid capacity and cooling/strengthen ribs keeps temperature cooler

Application

Designed to fit most vehicles with GM 8.2", 8.5"& 8.6" 10 Bolt differential, however each vehicle may have other interfering components and adequate clearance and fitment should be verified prior to purchase & installation. Refer to ID guide and measurement diagram for specific dimensions.

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Holley IRS Sale 2026

Save 10% instantly on select products across the Holley family of performance brands during the annual Holley I.R.S.Tax Sale. Instant rebate period runs from February 17, 2026 through March 29, 2026.

B&M 71502 Specifications

KEY SPECS
MFG. Part #71502
BrandB&M
GENERAL
GTIN Code019695715021
Overall Thickness3.43"
Material TypeAluminum
FinishAnodized
Bolt Count10
Bolt Hole PatternGM 8.2/8.5/8.6
Drain Plug IncludedYes
Filler Plug IncludedYes
Gaskets IncludedNo
Call Out Size2.84"
ColorBlack

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5.0

4 years ago

Frank M.

So. California

Verified

This rear end cover is as solid as they come. A quality piece. Large cooling fins and the aluminum cover itself provides extra cooling over a traditional steel cover. When you add the extra fluid capacity makes it one solid piece.

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