Floor Pan

The floor pans wasn't in too bad of shape taking into account the age of the car. But they did have a little bit of an issue that needed some attention. I used a pressure washer to knock the old seam sealer out of the cracks between the wheel house and trunk floor alone with loose flakes of rust. I then sanded the floor pan with a flap wheel. I used a sandblaster where the flap wheel did not reach. I patched a 4 in.x5 in. area under the brake pedal.

After a good cleaning with acetone I brushed on a coat of Rust Bullet. After that dried to the touch I used pieces of fiberglass fabric soaked with Rust Bullet over the small holes and pushed the air out with a Bondo squeegee.

The next morning second coat of Rust Bullet was applied. Before moving to the trunk area I welded the bumper mount to the trunk floor. The holes left over from the '74 and '73 quarter extensions got filled with a puddle from the mig welder then grinded down.

I decided to make another mess with the sandblaster in the trunk area and the backside of the quarter panels. I then sprayed 2 coats of Rust Bullet to the trunk floor and the inside of the quarter panel. Fresh seam sealer was applied 48 hours later. I brushed 2 coats of bed liner from the heater box to the tail lights and inside the quarter panels to add mass to metal surfaces to help in reducing reverberant sound.

Aluminum faced insulation is also draped behind quarter trim and seat back. Next I will add a layer of Peel & Seal on the floor and wheel wells using aluminum tape on the seams.