• If you currently own, previously owned or want to own an Avalanche, we welcome you to become a member today. Membership is FREE, register now!

Rear End Sag


New Member
Nov 25, 2020
So I have a 2010 Avalanche LT. A couple months ago I finished putting on a 5“ Rough Country lift with new Bilstein 5100’s in the front and rear. I also replaced the coils in the front and back with some new OEM ones. My issue though is after I’ve had this lift in for the last couple months my rear end looks like it’s starting to sag. I know I need new coil spring insulators but I’m sure that’s not the full cause of the sag. Maybe the new springs are lighter in spring rate? Not sure what’s going on and was looking for some help!