David@Vengeance

iTrader: (1)

I have a 2014 Silverado RCSB with the following suspension mods:

Rough Country Flip Kit
Belltech Rear Shocks
Belltech Lowering Springs - 1.5" w/ supplied spacers
Belltech Front Drop Spindles
Stock Front Shocks
No C-Notch

The front is near perfect. I had the Rough Country spacers with stock springs before and could never get camber right and it bounced like crazy. New springs made it much better for both issues, but the rear has a shimmy that I can't get rid of. On brand new roads it doesn't do it, but as soon as there are any imperfections it vibrates through the seat and feels like the rear end is almost bouncing side to side. I'm installing a 4* shim in the rear to correct driveshaft angle this week (small vibration when accelerating at 70mph+), but I don't feel that the two are related.

Has anyone else ran into this and figured out a solution to smooth out the ride?

BCraven1018

I have a shimmy and shake , but mine is from these crappy toyo tires.

ccreddell

Ive done a lot of static drops over the years, although never one on a NBS. But one thing Ive always done is used KYB Gas-a-just shocks. And all the trucks Ive dropped have ridden quite well. I tried Doetsch Tech shocks, Bell Tech shocks and even Monroe shocks and none of them give the Cadillac ride the KYBs have. Just my opinion.

D3moN plz

4/6 McGaughy drop with McGaughy shocks....and i get the exact same.

i want to install the pinion angle shim as well...hoping that it'll help some...and i'm looking at different shocks.

bigsapper

iTrader: (2)

Instead of the shim, I think you need the trans spacer. Belltech sells one.