UMI frame notch kit boosts axle clearance for lowered trucks, no bed rail cuts Chest Rig These heavy duty trailing arms

These heavy duty trailing arms are designed to replace the factory stamped arms

For ease of installation

1978-1988 G-Body Rear Upper Control Arms

99-00 5 series w/GM5

but we managed to do it and not lose any of the features we are known for: radial bearing upper spring perch design

UMI frame notch kit boosts axle clearance for lowered trucks, no bed rail cuts Chest Rig These heavy duty trailing armsUMI's bolt in frame notch kit enhances axle clearance for lowered trucks, essential for drops over 6 inches. The kit features robust 3 16' laser cut steel, top quality hardware, and poly bump stops. While factory frame notching is necessary, UMI's design eliminates the need to cut the valuable bed reinforcement rails. The exclusive inner support plate serves as a convenient template, and a gloss black powder coat finish protects your investment.