i got a 87 3.27 9 bolt. Posi cones are bad, maybe shimming them will help. Can garuntee it. Iron rear calipers. I was going to rebuild it but no one has replacement parts for them ...
__________________ 2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85