Minor Rust
Longitudinal (Chassis Rail) Corrosion
Symptoms
The longitudinal chassis rails that run under the floor develop rust, perforation, and eventual structural failure.
Cause
The longitudinals are exposed to road spray from below and moisture from above (through corroded floor panels). Debris accumulates in the enclosed sections of the rails, trapping moisture.
Fix
If caught early, corroded sections can be cut out and plated.
If the damage is extensive, the longitudinals must be fully replaced, a major structural repair that involves removing the body shell from the floorpan.
Cost: $3,000-$8,000 for partial repair, $10,000+ for full replacement.
Cost mentioned in fix
Cost: $3,000-$8,000 for partial$10,000+ for full
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