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Ships within 48 hours · Estimated delivery Nov 10 - Nov 15
Bolt-In Simplicity: Unlike traditional "weld-in only" notches that require extensive fabrication and frame stripping
consistency
Laser-Cut 3/16” Steel Construction
with select components and some optional add-ons shipped boxed separately on the pallet as needed
Heavy-Duty 1/4" Steel: Just like our offset mounts
73-87 Chevy & GMC C10 Squarebody Rear Frame C-Notch Kit (Bolt-On) made-to-order Bolt-In Simplicity: Unlike traditional "weld-in73 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
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