i installed a set of rear z85 leafs onto my gmc jimmy 4 door. my problems are now that its lifted the back up high causing my factory emergency brake on the driver side to be to short since its lifted more and my axles moved back a little bit. sencond issue is i have the springs installed right but with 2 inch lift shackles and my shackles almost rub up against my rear trailer hitch has any one had this issue before

 

Are they new or JY springs? First thing that came to my mind is they need to settle yet but I doubt that would apply to used springs. That's all I got sorry

 

they were pulled from the wreckers from a 96 s10 pick up.there were used but had a leaf added and were in great shape. now when the truck is on the ground the shackles almost hit my rear trailer hitch and my ebrake cable dont strech far enough

 

s10 and blazer springs have different center pin offset (~1 inch different)... may explain your problem.

 

i figured they had a diffrent offest and they seem longer as well. would a s10 drive shaft correct the issue that i pulled the springs from originally?