How To Do 1977-1991 GM 10 Bolt Front Axle Identification:
Type: Iron beam 4x4 Front Drive Axle
Front Cover: Oval with 10 Bolts. 11" high x 10-1/4" wide. Unlike the Dana 44 Diff Cover, the GM 10 Bolt Cover does not have any flat sides.
Suspension: Leaf spring
Ball Joints: Pressed in Steering Knuckle, nuts at top
GM 10 Bolt Front Axle Usage: 1977.5-1980 most Chevy and GMC 1/2 ton and 3/4 ton Trucks and SUVs (Dana 44 also used these years) 1981-1987 All Chevy and GMC 1/2 ton and 3/4 ton Trucks and SUVs 1988-1991 All Chevy and GMC 1/2 ton and 3/4 ton SUVs (Blazer, Jimmy, Suburban)
The GM 10 Bolt front axle was used on Chevy and GMC 1/2 ton and 3/4 ton 4x4 pickups from 1977 to 1987 and on Blazer/Jimmy, and Suburban SUVs from 1977 through 1991. Identify a GM 10 Bolt Front Axle: Type: Iron beam 4x4 Front Drive Axle Front...
We are often asked how a customer can identify if their 4x4 has a Standard-Duty 3/4 ton Front Axle (Dana 44 or GM 10 Bolt) or a Heavy-Duty Axle (Dana 50IFS, Dana 60, Dana 61). There are several ways, but if your axle has an internally splined hub, the...
