I know you guys are talking ADs.But I put the TCI kit in the rear of my 55 2nd TF with no problems whatsoever.The hardest part was knocking the old rivets out of the frame.I also had to flip the rearend,but ya just gotta be careful and ck.your measurements a couple of times.Original setup was 7 leaf springs with spring perches on top of the rearend.It now has 5 leaf springs with the perches on the bottom of the rear.It rides and handles a lot better,and oh yeah it looks a lot better sitting lower.