Thanks for reply, still thinking it over. You know what they say, study long, study wrong. On my tight u-joint, couldn't find a replacement, sprayed joint with Kano Sili Kroil penetrant, pressed tight side out to the seal started to touch, and pressed it back in. On mine factory had put a .0045shim between each cap and snap ring. I removed shims from tight side and seated snap rings, total of .009. Joint is now free, don't know if penetrant got past seal and lubed joint or if removing shims freed it up. I used to have a needle grease fitting but couldn't find it. Next time I'll check it again, possibly find needle fitting of buy another. Think it was handled by alemite.