SKU: 54104957119

B&M Hi-Tek Aluminum Differential Cover for GM 8.875-inch 12-bolt Truck - 70504

Sale price$150.72 Regular price$167.47
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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

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Description

B&M Hi-Tek Aluminum Differential Cover for GM 8.875-inch 12-bolt Truck - 70504Overview: 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

Overview:

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. Note: Gasket not included.

Features:

  • Load Bolts for Additional Support for Bearing Caps
  • Magnetic Drain Plug for Easy Servicing
  • Additional .50-quart Fluid Capacity
  • A356.0-T6 Aluminum Construction
  • Over 65 Years of B&M Quality
  • Lifetime Limited Warranty
  • Machined B&M Logo

Application:

Year Make Model Submodel Engine Size
1967 - 1982 Chevrolet K10 Suburban
1967 - 1974 GMC K15/K1500 Suburban
1967 - 1974 GMC K25/K2500 Suburban
1967 - 1974 GMC C15/C1500 Suburban
1967 - 1974 GMC C25/C2500 Suburban
1975 - 1978 GMC K15 Suburban
1979 - 1982 GMC K1500 Suburban
1975 - 1978 GMC K25
1979 - 1981 GMC K2500
1975 - 1978 GMC K25 Suburban
1979 - 1982 GMC K2500 Suburban
1969 - 1987 Chevrolet Blazer
1975 - 1982 Chevrolet K5 Blazer
1964 - 1974 Chevrolet G10 Van
1969 - 1974 Chevrolet G20 Van
1964 - 1974 Chevrolet K10 Pickup
1973 - 1974 Chevrolet K20 Pickup
1969 - 1981 Chevrolet K20 Suburban
1964 - 1966 Chevrolet Suburban
1967 - 1974 GMC C15/C1500 Pickup
1973 - 1974 GMC C25/C2500 Pickup
1967 - 1974 GMC G15/G1500 Van
1967 - 1974 GMC G25/G2500 Van
1970 - 1982 GMC Jimmy
1966 - 1974 GMC K15/K1500 Pickup
1973 - 1974 GMC K25/K2500 Pickup
1964 - 1966 GMC Suburban
1967 - 1982 Chevrolet C10 Suburban
1975 - 1982 Chevrolet C10
1975 - 1981 Chevrolet C20
1969 - 1981 Chevrolet C20 Suburban
1975 - 1982 Chevrolet G10
1975 - 1981 Chevrolet G20
1975 - 1982 Chevrolet K10
1973 - 1974 Chevrolet C20 Pickup
1975 - 1978 GMC K15
1979 - 1982 GMC K1500
1964 - 1974 Chevrolet C10 Pickup
1975 - 1981 Chevrolet K20
1975 - 1978 GMC C15
1979 - 1982 GMC C1500
1975 - 1978 GMC C15 Suburban
1979 - 1982 GMC C1500 Suburban
1975 - 1978 GMC C25
1979 - 1981 GMC C2500
1975 - 1978 GMC C25 Suburban
1979 - 1981 GMC C2500 Suburban
1975 - 1978 GMC G15
1979 - 1981 GMC G1500
1975 - 1978 GMC G25
1979 - 1981 GMC G2500

Specs:

Bolt Count 12
Bolt Pattern GM 8.875 Truck
Brand B&M
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Required Yes
Call Out Size (in) 3.27
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
Product Type Differential Cover
Thickness (in) 3.62
Warning California Proposition 65
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54104957119

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4.2 ★★★★★
Based on 6 reviews
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Product Reviews
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Verified Purchase
Peter Anfang
Waukegan, US
★★★★★ 5
Exactly what I expected!
Style: 20W_USB-C, Size: 6FT, Style: 20W_USB-C, Size: 6FT
Perfect for recessed lighting in our shiplap wall to go behind the TV. I will be buying these again for future projects I have planned!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 3
Multiple ports
Style: 20W_USB-C, Size: 10FT
The usb outlet broke within a week of purchase. The rest of the outlets work perfectly. Like that it has multiple ports to plug in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026
T
Verified Purchase
Treats86
Louisville, US
★★★★★ 5
Amazing. A bit of a job to set it up but worth it!
Color: Black, Color: Black
Excellent quality. Sturdy and strong. The screws that come with it are awful. Get yourself some different ones. Takes a while to set it up and get it all measured. I did it while I was setting up my new Flexi-spot E7 Plus standing desk. Wanted to get it all done at the same time. At first. I thought it might be overkill, but I am sooooo glad I did get this. Now my computer moves along with the desk. It looks great. I bet it has improved the air flow around my computer as well. Looks sleek and cool. I might have set it a bit too tight around my case and as a result I have to shimmy it to get it out of the holder if I have to do any work on the computers internals. But at least I know it's secure. My suggestion would be to leave a little bit of slack to avoid this in your setup. Maybe like a 1/4 inch would be ok. The pads should hold it in place anyway. May loosen mine up if I find the time. But it feels totally secure on the desk with no wobble or shaking. Great product. Also I'm a woman in my late fifties 😃and I was able to set it all up on my own. So don't be intimidated ladies, you can do it too. I also bought two of the ultimate set up cable management trays. Great products. Note for anyone from the Ultimate Setup company who might read this. Please provide better quality wood screws and some extra ones) I stripped three of the cheap ones that came with this. And it took forever to drill them in because they weren't strong enough. Then it would be perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025
N
Verified Purchase
Norman D Warren
New York, US
★★★★★ 5
Solid, simple and perfect.
Color: Black, Color: Black
Great simple design. The quality is evident in the thickness of materials. The assembly instructions, hardware and tools provided help minimize the time spent from opening the box to install. This product is packaged well and shipped with the customer convenience in mind. Well done!
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Reviewed in the United States on May 26, 2026
A
Verified Purchase
Ashton Raum
Lowell, US
★★★★★ 5
Awesome quality
Color: White, Color: White
Take your time installing! It comes with all the instructions and templates. Make sure you’re screwing this into solid wood. I would not recommend you hang your expensive PC from a particle board table. My Pc fits in well and it’s compatible with a ton of different sizes. Mine has been mounted under my desk for about 6 months and is rock solid. I will say, mine is balancing in there. If I don’t have it at its center of gravity, it could tip out. You can adjust it with the various screw holes but make sure you mount it into something solid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026

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