The rear half of the driveshaft in my 55 GMC 630 was removed when I acquired it, but came with it. I'm cleaning up and repacking the disassembled u-joint. The locking tab plates are marked "USE OIL". I'm accustomed to greasing u-joints, not oiling them. What am I missing?


1955 GMC 630, 1959 GMC W660, 1958 Chevy Spartan 80