the rubber sleeve just closes the joint, the 2 sections mount individually ... the book doesn't have dimensions, but I'll look at the one here and get the length today for you, there's one longer ... and OK, for instant gratification I put up the pictures from the book,
3 start here 
OK, the spacers are 9/16 except the one on the long stud, which is 1 & 3/16
Bill
