Today I reversed and it went clunk.. clunk and now is making a gawd awefull I am dying sound the suburban is a 3/4 ton and with 130,000 on her. I am wondering if the perches are the same as the older 14 bolts? or if they changed? ?? I figure it will be quicker to swap a rear and cheaper, most yards are 150.00 on up for a full floater and that should save me some time and money when you factor.. new ring and pinion bearings and install cost.. any idears?