replace the seal
Replacing a rear differential seal is easy. All you have to do is unbolt the shaft and take out the old seal.
Get a manual on your car and it will show you how to replace it and do the job right. Yes Mine is not but it appears to be common that it can be either type. When replacing my clutch I found a small leak and decided to replace the seal. The seal itself is not hard, just getting to it.
To replace the rear main seal on a 1989 GMC Vandura, you first need to remove the transmission and the flywheel or flexplate to access the seal. Once you have clear access, carefully pry out the old seal using a seal remover or a flat tool. Clean the sealing surface and install the new seal, ensuring it is seated evenly. Finally, reassemble the flywheel or flexplate and the transmission, making sure to torque all bolts to the manufacturer's specifications.
Navy Seal - 1989 VG was released on: USA: 2 January 1989
replace the steering gearbox.adjusting the old one will not take out the slope and will likely cause it to blow the seal .
Remove the tire and wheel from your 2003 GMC 2500 Sierra. Remove the end of the axle. Using a seal puller remove the axle seal. Reverse the process to install your new rear axle seal.
Local Ford dealer wanted $285 to replace both rear axel seals on a 2005 Ford Mustang GT (Jan 2012).
Front seal: remove engine or transmission and replace the seal. Rear seal, remove the drive shaft to replace the seal. Unfortunately, you typically only have problems with the front seal.
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