73-87 Chevy & GMC C10 Squarebody Rear Frame C-Notch Kit (Bolt-On) made-to-order 360° Clocking: The precision 3"

360° Clocking: The precision 3" diameter saddle allows you to rotate the mount around the axle tube before welding

(1) Hardware Bag & Instructions

Heavy-Duty 1/4" Steel: Just like our offset mounts

Laser-Cut 3/16” Steel Construction

73-87 Chevy & GMC C10 Squarebody Rear Frame C-Notch Kit (Bolt-On) made-to-order 360° Clocking: The precision 3"73 87 Frame C Notch Kit #130 4000 The GSI Rear Frame C Notch Kit is the definitive solution for 1973 1987 Chevy & GMC trucks that require increased axle clearance. When lowering a Squarebody more than 4 inches, the factory frame rail becomes a bottleneck for suspension travel. Our C notch provides the necessary "relief" to prevent harsh axle to frame contact, ensuring a smooth ride even on aggressive drops. Engineered for builders who want a