1973–87 Squarebody C10 pickup chassis stiffening
2 kits to stiffen the frame, from frame rails and connectors to braces and roll bars.
- How it's built
- Full ladder frame (open C-channel rails)
- Weak spots
- The C-channel rails flex, and the steering box mount area cracks. The leaf rear is harsh and loosely located, and the stance is tall.
Stiffening kits
| Area | Kit | What it is | Price |
|---|---|---|---|
| Frame stiffening | Offroad Design Bolt In Steering Box Brace for '73-91 GM 2WD Trucks | Ties the box mount across the frame to stop cracking | $125 Listed on OD category page Source |
| Frame stiffening | Tinworks Suspension 73-87 Frame Boxing Plates | 10-ga weld-in boxing plates for front, middle and rear sections | $607.50 Sale price (reg $675) Source |
Prices are from the linked seller pages and change often. Confirm fitment for your exact year and body style before ordering; many weld-in parts need professional installation. Some links earn us a commission.
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