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 bearings, the ring and pinion gears. Additional features include a magnetic drain plug for catching ferrous metal particles, MIL-Spec (MIL-A-8625) black anodized finish, 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.
| Additional Fluid Capacity (qts) |
No |
| Bolt Count |
10 |
| Bolt Pattern |
GM 8.2/8.5/8.6 |
| 672 |
10 |
| Bolt/Studs Included |
Yes |
| Brand |
B&M |
| California Proposition 65 Chemical Name |
Chromium (hexavalent compounds) |
| California Proposition 65 Required |
Yes |
| Call Out Size (in) |
2.84 |
| 673 |
Yes |
| Category |
Transmission and Drivetrain |
| Color/Finish |
Black Anodized |
| 1948 |
Yes |
| Emission Code |
5 |
| 674 |
Yes |
| Finish |
Black |
| Gasket Included |
No |
| 353 |
No |
| Gaskets Included |
No |
| 3390 |
Performance |
| 10 |
A356.0-T6 Aluminum |
| 264 |
10 |
| 9204 |
Yes |
| Product Type |
Differential Cover |
| Studs Included |
Yes |
| Thickness (in) |
3.43 |
| Warning |
California Proposition 65 |
| Additional Fluid Capacity (qts) |
No |
| Bolt Count |
10 |
| Bolt Pattern |
GM 8.2/8.5/8.6 |
| 672 |
10 |
| Bolt/Studs Included |
Yes |
| Brand |
B&M |
| California Proposition 65 Chemical Name |
Chromium (hexavalent compounds) |
| California Proposition 65 Required |
Yes |
| Call Out Size (in) |
2.84 |
| 673 |
Yes |
| Category |
Transmission and Drivetrain |
| Color/Finish |
Black Anodized |
| 1948 |
Yes |
| Emission Code |
5 |
| 674 |
Yes |
| Finish |
Black |
| Gasket Included |
No |
| 353 |
No |
| Gaskets Included |
No |
| 3390 |
Performance |
| 10 |
A356.0-T6 Aluminum |
| 264 |
10 |
| 9204 |
Yes |
| Product Type |
Differential Cover |
| Studs Included |
Yes |
| Thickness (in) |
3.43 |
| Warning |
California Proposition 65 |
| Description_INV |
DIFF COVER-BLACK,GM 8.2, 8.5 & 8.6 10 BO |
| Description_ASC |
Designed to fit most vehicles with GM 8.2-inch, 8.5-inch & 8.6-inch 10-bolt differentials. 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 |
| Description_DES |
B&M Hi-Tek Aluminum Differential Cover for GM 10-Bolt - Black |
| Description_EXT |
GM 8.2-inch, 8.5-inch & 8.6-inch 10-bolt Differentials. |
| Description_MKT |
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 bearings, the ring and pinion gears. Additional features include a magnetic drain plug for catching ferrous metal particles, MIL-Spec (MIL-A-8625) black anodized finish, 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. |
| Description_FAB |
Load Bolts Provide Additional Support to Bearing Caps |
| Description_FAB |
Magnetic Drain Plug for Easy Servicing |
| Description_FAB |
A356.0-T6 Aluminum Construction |
| Description_FAB |
.4-quart Additional Fluid Capacity |
| Description_FAB |
MIL-Spec Black Anodized Finish |
| Description_FAB |
Over 65 Years of B&M Quality |
| Description_FAB |
Lifetime Limited Warranty |
| Description_FAB |
Machined B&M Logo |
| Description_INV |
DIFF COVER-BLACK,GM 8.2, 8.5 & 8.6 10 BO |
| Description_ASC |
Designed to fit most vehicles with GM 8.2-inch, 8.5-inch & 8.6-inch 10-bolt differentials. 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 |
| Description_DES |
B&M Hi-Tek Aluminum Differential Cover for GM 10-Bolt - Black |
| Description_EXT |
GM 8.2-inch, 8.5-inch & 8.6-inch 10-bolt Differentials. |
| Description_MKT |
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 bearings, the ring and pinion gears. Additional features include a magnetic drain plug for catching ferrous metal particles, MIL-Spec (MIL-A-8625) black anodized finish, 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. |
| Description_FAB |
Load Bolts Provide Additional Support to Bearing Caps |
| Description_FAB |
Magnetic Drain Plug for Easy Servicing |
| Description_FAB |
A356.0-T6 Aluminum Construction |
| Description_FAB |
.4-quart Additional Fluid Capacity |
| Description_FAB |
MIL-Spec Black Anodized Finish |
| Description_FAB |
Over 65 Years of B&M Quality |
| Description_FAB |
Lifetime Limited Warranty |
| Description_FAB |
Machined B&M Logo |
