UMI Performance 73-87 GM C10 Frame Notch Kit SV and M12 x 1

and M12 x 1

while aluminum construction and heat-dissipating fins keep the temperature down

0L engine option

This system includes a merge X-Pipe for increased performance and improved sound

UMI Performance 73-87 GM C10 Frame Notch Kit SV and M12 x 1UMI'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.