Symptoms
Holes in the boot floor or under the rear seats, rust around the seat-belt anchors, MOT or inspection failures on body mounts, or a rear clunk from a corroded arm bracket.
The fix, step by step
- Cut back to clean metal before judging it: forum regulars warn it always looks worse once cleaned up.
- Pressed repair floors are available in the UK, and sills and radius-arm brackets come as panels.
- Weld in new metal, seam-seal and paint, then wax the cavities.
- If the chassis rail itself or the spring and body mounts are badly rotted, BigJimny warns the truck may be beyond economical repair.
Tools & part numbers
- MIG welder
- grinder
- seam sealer
- cavity wax and underbody coating.
Where to buy the parts
Rear Radius Arm Repair Bracket (O/S)BigJimny ↗Amazon ↗
Sill, Outer LHBigJimny ↗Amazon ↗
Sill, Inner LHBigJimny ↗Amazon ↗
Chassis Rear End CapsBigJimny ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Suzuki Jimny JB23 / JB43 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.