Since we are talking about the rear cover I will once again share what I learned regarding installing the rear studs and acorn nuts.
when I received my ZF from the vendor who upgraded to 0.620 fifth gear, I could not get the ZF to stay in reverse.
called the vendor who basically was no help at all. I had checked for the back up switch interference and had completely removed all linkage and was shifting using vice grip pliers. I knew the problem was internal to the ZF
What I eventually learned from a couple of fellow owners is that there is one stud that can screw so far through the back cover as to actually block the sliding movement of the reverse gear. Sure enough, upon removal I could see the grinding marks on the back of the stud.
just getting this out into the collective memory again.
Larry
