I've got a clutch issue and have pulled the rear end. I notice that there are grooves on ends of each of the U-Joint cross (see picture). Is this an indication of a problem? I'd just as soon address it now while everything is disassembled.
May be a dumb question but, is this the way your U-joint looked when you pulled it? Or is this after cleaning all the grease off ?
If your talking about the flats visible on the male part in the bores, that is factory for lubrication purposes.
I am referring to the parallel ridges on the round ends of the cross. All 4 ends look the same.
we're talking about the same thing. Perfectly normal