BDS 4" Coilover 2020+ GM 1500 AT4 Install Notes

Truck is a 2020 GMC AT4 1500 

Lift: BDS 4" Coilover lift kit (makes it a 6" on the AT4/ Trail Boss trucks)

Wheels/ Tires: 20x9 Black Rhino Warlords -12 offset; Toyo RT 35x11.50x20

Trimming: Minor trimming on the fender liners

Install Time: 12 Hours

Lift Kit Link:


On the cut/weld it will be done on the driver side rear crossmember pocket. You're creating space for the new cross member. The weld in plate is just to make the bracket more sturdy (extra support), it does not hold any weight. (used a simple mig welder for this)

On passenger side rear pocket you'll only cut the front side, do not cut the back side of the pocket.

The reservoir shock mounts will go on the back side of the control arm, be sure not to route them inbetween the brake lines

Before and after the lift on the rack: