RodderMods

Chassis stiffening

1976–86 Jeep CJ-7 & CJ-8 Scrambler 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 (narrow C-channel rails)
Weak spots
Frame rails rust and crack, especially at the rear rails and the steering box area. The short, narrow leafs ride harshly and axle-wrap, and manual steering is heavy and slow.

Stiffening kits

Prices checked Oct 2, 2026

AreaKitWhat it isPrice
Frame stiffening Rust Buster RB1006 Rear Frame Stiffener Pair (76-86 CJ-5/CJ-7) 1/8in slip-over plates for the rear rails; welding required $134.99 Quadratec sale price (reg $149.99) Source
Frame stiffening Rust Buster RB1005 Front Frame Stiffeners Pair Slip-on .125in front rail reinforcement, pre-drilled $149.99 The Jeep Hut price 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.