Just got a 03 Alpha 1 4.3L. It was not run this year. Found a broken shift cable boot and very small amount of water in the gear lube. Pulled the drive and found water in the u-joint boot. There is rust on the yokes from soaking in an inch of water. Looks like the gimbal bearing is junk. The u-joints are GKN perma-lube and feel good.
When I push the drive up, I don not see any cracks or other signs of degradation to the U-joint bellows. The failed shift cable bellows is full of small cracks when stretched.
Should I replace the u-joints and the u-joint bellows?
Thanks for the help.