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B&M Hi-Tek Aluminum Differential Cover for GM 8.875-Inch 12-Bolt Car 70500

B&M Hi-Tek Aluminum Differential Cover for GM 8.875-Inch 12-Bolt Car 70500
B&M Hi-Tek Aluminum Differential Cover for GM 8.875-Inch 12-Bolt Car 70500B&M Hi-Tek Aluminum Differential Cover for GM 8.875-Inch 12-Bolt Car 70500B&M Hi-Tek Aluminum Differential Cover for GM 8.875-Inch 12-Bolt Car 70500
$463.99 ea
NEWARRIVING SOONEstimated Ship Date 12/10/2024 (If Ordered Today)19 Available from HOLLEY PERFORMANCE PRODUCTS as of 11/20/2024
Model: 3998321
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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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, a 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. Note: Gasket not included
Features:
  • Load Bolts for Additional Support for Bearing Caps
  • Magnetic Drain Plug for Easy Servicing
  • A356.0-T6 Aluminum Construction
  • Additional .5-quart Fluid Capacity
  • Over 65 Years of B&M Quality
  • Lifetime Limited Warranty
  • Machined B&M Logo
Designed to fit most vehicles with GM 8.875-inch 12-bolt Car 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 the ID guide and measurement drawings for specifications.
Installation Notes:
Designed to fit most vehicles with GM 8.875-inch 12-bolt Car 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 the ID guide and measurement drawings for specifications.

About B&M Racing

B&M® specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluid. B&M Performance & Off-Road has been at the vanguard of the growing automotive aftermarket since the early 1950s. Racers themselves, B&M’s founders identified the needs of local performance enthusiasts and developed products to fill those needs. B&M specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, automatic shift handles, extended transfer case handles, cast deep aluminum transmission pans, differential covers, transmission coolers, power steering coolers, automatic transmission fluid, and transmission accessories for performance street, truck, Jeep, and off-road applications.

Downloads:

Download Name File Size
bm_warranty.pdf87.47KB
70500_instructions.pdf1.2MB

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine
Chevrolet Chevelle 300 Deluxe 1967 3.8L / 230 / L6
4.6L / 283 / V8
4.1L / 250 / L6
5.3L / 327 / V8
Chevrolet Chevelle 300 Deluxe 1968 5.0L / 307 / V8
5.7L / 350 / V8
3.8L / 230 / L6
6.5L / 396 / V8
4.1L / 250 / L6
5.4L / 327 / V8
5.3L / 327 / V8
Chevrolet Chevelle 300 Deluxe 1969 5.0L / 307 / V8
5.7L / 350 / V8
3.8L / 230 / L6
6.5L / 396 / V8
4.1L / 250 / L6
Chevrolet Chevelle 300 1967 5.3L / 327 / V8
4.1L / 250 / L6
4.6L / 283 / V8
3.8L / 230 / L6
Chevrolet Chevelle 300 1968 5.7L / 350 / V8
6.5L / 396 / V8
5.3L / 327 / V8
4.1L / 250 / L6
5.0L / 307 / V8
5.4L / 327 / V8
3.8L / 230 / L6
Chevrolet Chevelle Base 1964 4.6L / 283 / V8
3.8L / 230 / L6
5.3L / 327 / V8
3.2L / 194 / L6
Chevrolet Chevelle Base 1965 4.6L / 283 / V8
3.8L / 230 / L6
6.5L / 396 / V8
5.3L / 327 / V8
3.2L / 194 / L6
Chevrolet Chevelle Base 1966 4.6L / 283 / V8
3.8L / 230 / L6
6.5L / 396 / V8
5.3L / 327 / V8
3.2L / 194 / L6
Chevrolet Chevelle Base 1967 4.6L / 283 / V8
3.8L / 230 / L6
6.5L / 396 / V8
4.1L / 250 / L6
5.3L / 327 / V8
Chevrolet Chevelle Base 1968 5.0L / 307 / V8
Chevrolet Chevelle Base 1970 5.0L / 307 / V8
7.4L / 454 / V8
6.6L / 402 / V8
4.1L / 250 / L6
5.7L / 350 / V8
6.6L / 400 / V8
Chevrolet Chevelle Base 1971 5.0L / 307 / V8
7.4L / 454 / V8
6.6L / 402 / V8
4.1L / 250 / L6
5.7L / 350 / V8
6.6L / 400 / V8
Chevrolet Chevelle Base 1972 5.0L / 307 / V8
7.4L / 454 / V8
6.6L / 402 / V8
4.1L / 250 / L6
5.7L / 350 / V8
6.6L / 400 / V8
Chevrolet Chevelle Concours Estate 1969 5.0L / 307 / V8
3.8L / 230 / L6
4.1L / 250 / L6
6.5L / 396 / V8
5.7L / 350 / V8
Chevrolet Chevelle Concours Estate 1970 5.0L / 307 / V8
4.1L / 250 / L6
7.4L / 454 / V8
6.6L / 402 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Chevrolet Chevelle Concours Estate 1971 5.0L / 307 / V8
4.1L / 250 / L6
7.4L / 454 / V8
6.6L / 402 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Chevrolet Chevelle Concours Estate 1972 5.0L / 307 / V8
4.1L / 250 / L6
7.4L / 454 / V8
6.6L / 402 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Chevrolet Chevelle Concours 1967 3.8L / 230 / L6
5.4L / 327 / V8
4.6L / 283 / V8
6.5L / 396 / V8
4.1L / 250 / L6
Chevrolet Chevelle Concours 1968 3.8L / 230 / L6
5.4L / 327 / V8
5.0L / 307 / V8
5.3L / 327 / V8
6.5L / 396 / V8
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Chevelle Concours 1969 3.8L / 230 / L6
5.0L / 307 / V8
6.5L / 396 / V8
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Chevelle Concours 1970 6.6L / 402 / V8
7.4L / 454 / V8
5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Chevelle Concours 1971 6.6L / 402 / V8
7.4L / 454 / V8
5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Chevelle Concours 1972 6.6L / 402 / V8
7.4L / 454 / V8
5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Chevelle Deluxe 1965 3.2L / 194 / L6
4.6L / 283 / V8
3.8L / 230 / L6
5.4L / 327 / V8
Chevrolet Chevelle Deluxe 1966 3.2L / 194 / L6
4.6L / 283 / V8
Chevrolet Chevelle Deluxe 1967 4.1L / 250 / L6
4.6L / 283 / V8
3.8L / 230 / L6
5.4L / 327 / V8
6.5L / 396 / V8
Chevrolet Chevelle Greenbrier 1969 5.0L / 307 / V8
6.5L / 396 / V8
3.8L / 230 / L6
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Chevelle Greenbrier 1970 5.0L / 307 / V8
6.6L / 400 / V8
6.6L / 402 / V8
7.4L / 454 / V8
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Chevelle Greenbrier 1971 5.0L / 307 / V8
6.6L / 400 / V8
6.6L / 402 / V8
7.4L / 454 / V8
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Chevelle Greenbrier 1972 5.0L / 307 / V8
6.6L / 400 / V8
6.6L / 402 / V8
7.4L / 454 / V8
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Chevelle Malibu 1968 5.0L / 307 / V8
4.1L / 250 / L6
5.3L / 327 / V8
5.7L / 350 / V8
3.8L / 230 / L6
5.4L / 327 / V8
6.5L / 396 / V8
Chevrolet Chevelle Malibu 1969 5.0L / 307 / V8
4.1L / 250 / L6
5.7L / 350 / V8
3.8L / 230 / L6
6.5L / 396 / V8
Chevrolet Chevelle Malibu 1970 6.6L / 402 / V8
5.0L / 307 / V8
4.1L / 250 / L6
6.6L / 400 / V8
7.4L / 454 / V8
5.7L / 350 / V8
6.5L / 396 / V8
Chevrolet Chevelle Malibu 1971 6.6L / 402 / V8
5.0L / 307 / V8
4.1L / 250 / L6
6.6L / 400 / V8
7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet Chevelle Malibu 1972 6.6L / 402 / V8
5.0L / 307 / V8
4.1L / 250 / L6
6.6L / 400 / V8
7.4L / 454 / V8
5.7L / 350 / V8
Chevrolet Chevelle Nomad 1968 5.4L / 327 / V8
3.8L / 230 / L6
5.3L / 327 / V8
6.5L / 396 / V8
4.1L / 250 / L6
5.0L / 307 / V8
5.7L / 350 / V8
Chevrolet Chevelle Nomad 1969 3.8L / 230 / L6
6.5L / 396 / V8
4.1L / 250 / L6
5.0L / 307 / V8
5.7L / 350 / V8
Chevrolet Chevelle Nomad 1970 6.6L / 402 / V8
7.4L / 454 / V8
6.6L / 400 / V8
4.1L / 250 / L6
5.0L / 307 / V8
5.7L / 350 / V8
Chevrolet Chevelle Nomad 1971 6.6L / 402 / V8
7.4L / 454 / V8
6.6L / 400 / V8
4.1L / 250 / L6
5.0L / 307 / V8
5.7L / 350 / V8
Chevrolet Chevelle Nomad 1972 6.6L / 402 / V8
7.4L / 454 / V8
6.6L / 400 / V8
4.1L / 250 / L6
5.0L / 307 / V8
5.7L / 350 / V8
Chevrolet Chevelle SS 1964 3.8L / 230 / L6
5.3L / 327 / V8
4.6L / 283 / V8
3.2L / 194 / L6
Chevrolet Chevelle SS 1965 3.8L / 230 / L6
6.5L / 396 / V8
5.3L / 327 / V8
4.6L / 283 / V8
3.2L / 194 / L6
Chevrolet Chevelle SS 1966 3.8L / 230 / L6
6.5L / 396 / V8
5.3L / 327 / V8
4.6L / 283 / V8
3.2L / 194 / L6
Chevrolet Chevelle SS 1967 4.1L / 250 / L6
3.8L / 230 / L6
6.5L / 396 / V8
5.3L / 327 / V8
4.6L / 283 / V8
Chevrolet Chevelle SS 1968 3.8L / 230 / L6
6.5L / 396 / V8
5.0L / 307 / V8
5.3L / 327 / V8
5.7L / 350 / V8
Chevrolet Chevelle SS 1969 4.1L / 250 / L6
3.8L / 230 / L6
6.5L / 396 / V8
5.7L / 350 / V8
Chevrolet Chevelle SS 1970 4.1L / 250 / L6
7.4L / 454 / V8
6.5L / 396 / V8
6.6L / 402 / V8
5.7L / 350 / V8
6.6L / 400 / V8
Chevrolet Chevelle SS 1971 4.1L / 250 / L6
7.4L / 454 / V8
5.0L / 307 / V8
6.6L / 402 / V8
5.7L / 350 / V8
6.6L / 400 / V8
Chevrolet Chevelle SS 1972 4.1L / 250 / L6
7.4L / 454 / V8
6.6L / 402 / V8
5.7L / 350 / V8
6.6L / 400 / V8
Chevrolet El Camino Base 1964 3.2L / 194 / L6
3.8L / 230 / L6
4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet El Camino Base 1965 3.2L / 194 / L6
3.8L / 230 / L6
4.6L / 283 / V8
5.3L / 327 / V8
Chevrolet El Camino Base 1966 3.2L / 194 / L6
3.8L / 230 / L6
4.6L / 283 / V8
6.5L / 396 / V8
5.3L / 327 / V8
Chevrolet El Camino Base 1967 4.1L / 250 / L6
3.8L / 230 / L6
4.6L / 283 / V8
6.5L / 396 / V8
5.3L / 327 / V8
Chevrolet El Camino Base 1968 4.1L / 250 / L6
3.8L / 230 / L6
5.0L / 307 / V8
6.5L / 396 / V8
5.3L / 327 / V8
5.4L / 327 / V8
5.7L / 350 / V8
Chevrolet El Camino Base 1969 4.1L / 250 / L6
3.8L / 230 / L6
5.0L / 307 / V8
6.5L / 396 / V8
5.3L / 327 / V8
5.7L / 350 / V8
Chevrolet El Camino Base 1970 7.4L / 454 / V8
4.1L / 250 / L6
5.0L / 307 / V8
6.6L / 400 / V8
6.5L / 396 / V8
6.6L / 402 / V8
5.7L / 350 / V8
Chevrolet El Camino Base 1971 7.4L / 454 / V8
4.1L / 250 / L6
5.0L / 307 / V8
6.6L / 400 / V8
6.6L / 402 / V8
5.7L / 350 / V8
Chevrolet El Camino Base 1972 7.4L / 454 / V8
4.1L / 250 / L6
5.0L / 307 / V8
6.6L / 400 / V8
6.6L / 402 / V8
5.7L / 350 / V8
Chevrolet El Camino Custom 1968 5.0L / 307 / V8
4.1L / 250 / L6
3.8L / 230 / L6
5.4L / 327 / V8
5.7L / 350 / V8
6.5L / 396 / V8
5.3L / 327 / V8
Chevrolet El Camino Custom 1969 5.0L / 307 / V8
4.1L / 250 / L6
3.8L / 230 / L6
5.7L / 350 / V8
6.5L / 396 / V8
5.3L / 327 / V8
Chevrolet El Camino Custom 1970 5.0L / 307 / V8
4.1L / 250 / L6
6.6L / 400 / V8
5.7L / 350 / V8
6.6L / 402 / V8
7.4L / 454 / V8
Chevrolet El Camino Custom 1971 5.0L / 307 / V8
4.1L / 250 / L6
6.6L / 400 / V8
5.7L / 350 / V8
6.6L / 402 / V8
7.4L / 454 / V8
Chevrolet El Camino Custom 1972 5.0L / 307 / V8
4.1L / 250 / L6
6.6L / 400 / V8
5.7L / 350 / V8
6.6L / 402 / V8
7.4L / 454 / V8
Chevrolet El Camino SS 1968 6.5L / 396 / V8
Chevrolet El Camino SS 1969 6.5L / 396 / V8
Chevrolet El Camino SS 1970 7.4L / 454 / V8
6.6L / 402 / V8
6.6L / 400 / V8
Chevrolet El Camino SS 1971 5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 402 / V8
6.6L / 400 / V8
Chevrolet El Camino SS 1972 5.7L / 350 / V8
7.4L / 454 / V8
6.6L / 402 / V8
6.6L / 400 / V8
Chevrolet Malibu Base 1964 4.6L / 283 / V8
3.2L / 194 / L6
5.3L / 327 / V8
3.8L / 230 / L6
Chevrolet Malibu Base 1965 6.5L / 396 / V8
4.6L / 283 / V8
3.2L / 194 / L6
5.3L / 327 / V8
3.8L / 230 / L6
Chevrolet Malibu Base 1966 6.5L / 396 / V8
4.6L / 283 / V8
3.2L / 194 / L6
5.3L / 327 / V8
3.8L / 230 / L6
Chevrolet Malibu Base 1967 6.5L / 396 / V8
4.6L / 283 / V8
4.1L / 250 / L6
5.3L / 327 / V8
3.8L / 230 / L6

Specifications:

Bolt Count 12
Bolt Pattern GM 8.875
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Required Yes
Call Out Size (in) 3.6
Carrier Main Cap Support Yes
Color/Finish Raw Aluminum
Drain Plug Included Yes
Emission Code 5
Filler Plug Included Yes
Gasket Included No
Material A356.0-T6 Aluminum
Part Type Differential Cover
Product Type Differential Cover
Proposition 65 www.P65Warnings.ca.gov
Thickness (in) 3.6
Warranty Limited Lifetime (Lifetime)

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