Toyota LC80: Rear Door Lower Corner Rust-Through

The 80 Series factory rear door design traps water and debris at the lower corners where the outer skin meets the frame channel. The factory drainage holes in this area are undersized and block readily with mud and organic matter, allowing moisture to sit against bare steel. Rust progresses from inside the door cavity outward, causing bubbling paint then rust-through at the lower corners. Both single swing-out and twin barn-door configurations are equally affected across all engine variants.

• Paint bubbling at rear door lower corners
• Visible rust-through holes at bottom edges of rear door
• Flaking rust visible inside door cavity when door is open
• Door skin feels soft or spongy when pressed at lower corners
• Brown rust staining below door on body

1. 1

   Closely inspect both lower corners of the rear door(s) with a torch.

2. 2

   Press firmly on the paintwork at each corner.

3. 3

   Open the door and examine the inner skin and frame channel for rust and moisture.

4. 4

   Look for signs of filler repairs, fresh paint, or colour mismatch in this area.

$700 to $4,000 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

• “Has any rust repair been done to the rear door corners?”
• “Are the rear doors original or have they been replaced?”
• “Has body filler been used anywhere on the rear doors?”
• “When was the vehicle last regularly used off-road?”

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.