Clay-The head of the bolts for the upper and lower control arms are actually a 5/8-inch socket. the nut can be either a 11/16 fit a hair loose or a hair tight 17mm. I just did a rear end install plus a nasty gas tank swap on Friday in the dirt cheap orange TR8 coupe. I will post some pictures. [:D]
Michael
1980 TR8 FHC #0020 Rally Conversion