When did B-O-P rear axle bearings change?
A production change in 1970 switched the bearings to a BCA type A-9 bearing and the axle seal was moved to the outside of the bearing to allow gear oil to lubricate the axle bearing.
When to replace rear axle bearings and seals?
After the axle has been removed inspect the bearing and seal surface to check for wear and scoring and replace if damaged. If this axle is worn you will see an obvious groove in this area. Do not reuse the axle at this point because the new seal and bearing will fail prematurely.
What kind of rear axle did an Oldsmobile use?
Although Buick, Pontiac, and pre-’67 Oldsmobiles used the same basic 8.2-inch 10-bolt differential (1967-’70 Oldsmobiles used the Olds-specific 12-bolt 8.5-inch differential), these are different from the Chevrolet 8.2 10-bolt offerings.
What causes an oil leak on the rear axle?
This causes oil and air to build up inside, which may force oil out of leak-prone places. Overfilling the axle with oil can also raise the pressure enough to cause leaks. Some rear-wheel-drive cars with independent rear suspension may leak oil from the drive-shaft oil seals.
When to use strange OEM style axle bearings?
Strange OEM style axle bearings (with seals) are designed for use in street/strip and stock vehicles where Legendary Strange custom axles are replacing OEM axles. New axle bearings and seals are recommended whenever axles are replaced.
How is the inner race of an axle bearing sealed?
The outer diameter of this type axle bearing is secured to the housing in such a way as to perform a seal. The inner race of the bearing is press-fit to seal the axle shaft and the sealed axle bearing is packed with grease; making it self-lubricating.
Although Buick, Pontiac, and pre-’67 Oldsmobiles used the same basic 8.2-inch 10-bolt differential (1967-’70 Oldsmobiles used the Olds-specific 12-bolt 8.5-inch differential), these are different from the Chevrolet 8.2 10-bolt offerings.
How are axle bearings secured to the housing?
This means that the bearing is not lubricated using rear end lube and doesn’t require a conventional seal in the axle housing. The outer diameter of this type axle bearing is secured to the housing in such a way as to perform a seal.