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B&M

B&M Hi-Tek Aluminum Differential Cover for GM 10-bolt

8.2-inch, 8.5-inch & 8.6-inch 10-bolt Differential Cover.

Part # 70502
1 Review
In Stock
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$237.95
Suggested Retail
$265.00
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Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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Our engineers designed the line of Hi-Tek differential covers to not only look good but address a number of weaknesses of the factory stamped steel covers. First, they started by constructing the covers of thick A356.0-T6 aluminum, which dissipates heat much faster than the factory steel unit keeping the fluid temperature lower under high-stress loads vs. a steel cover. Then for added durability, we added a reinforced center bar for extra strength along with load bolts to help prevent bearing cap deflection under severe loads. The internal shape of the cover retains the smooth round back internally to help keep the fluid flow going over the ring gear to properly lubricate the gears and bearings. Additional features include a magnetic drain plug for catching ferrous metal particles, machined B&M logo and all necessary hardware and easy to follow detailed instructions for a quick and simple installation you can do at home.

Features:

  • Load Bolts for Additional Support for Bearing Caps
  • Magnetic Drain Plug for Easy Servicing
  • A356.0-T6 Aluminum Construction
  • Additional .4-quart Fluid Capacity
  • Over 65 Years of B&M Quality
  • Lifetime Limited Warranty
  • Machined B&M Logo

About B&M

B&M Performance & Off-Road has been at the vanguard of the growing automotive aftermarket since the early 1950s. Specializing in performance automatic transmissions and transmission components, B&M will help you put the power to the ground.

Bolt Count10
Bolt PatternGM 8.2/8.5/8.6
Brand B&M
Call Out Size (in)2.84
Carrier Main Cap SupportYes
Color/FinishRaw Aluminum
Drain Plug IncludedYes
Emission Code5
Filler Plug IncludedYes
Gasket IncludedNo
MaterialA356.0-T6 Aluminum
Product TypeDifferential Cover
Thickness (in)3.43
UPC019695705022
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 RequiredYes
Part Number70502
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
  • Aluminum Differential Cover
  • Fill & Drain Plugs
  • Bolts & Washers
  • Load Bolts & Nuts
  • Warranty
Designed to fit most vehicles with GM 8.2, 8.5 & 8.6-inch 10-bolt differential, however vehicles may have other interfering components that may require modifications or moving of existing brackets, require longer cover bolts or different cover bolts, clearance of sway bars etc. - Checking for adequate clearance and fitment for your application should be verified prior to purchase & installation. Refer to ID guide and measurement drawings for specifications.
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Some parts are not legal for use in California or other states with similar regulations.