You are correct the underseat section only comes on 1/2 floor pan sections that don’t have braces. The 4 individual replacement floor pans sold exclude the area under the seat
You might want to at least “consider” a full floor pan. How many of your braces are bad ? (6 of them?) You could end up with lots of spot weld removal and significant welded edges of partial replacement areas.
Do you have pin holes in your floor? After we blasted both sides of the floor pan we ended up with many additional pin holes leading to more floor replacement needed.
I would bet that your inner rockers are rusted and have some significant holes in them from the rusted braces I see in your pictures. I buy both inners rocker sections ( they are only sold as full length replacement pieces)- all the braces are spot welded to the inner rockers. I only replace the inner rockers were they have holes, leaving the solid sections of inner rockers in place.
Other Items to remember to handle:
- You have to save and transfer from the bottom side of your floor pan- the rectangular front seat mounting brackets that have the fixed threaded nuts for the seat brackets. These seat brackets are actually mounted under the factory braces.
- Also transfer 4 front seat belt square cage nut style mounts from the bottom of the floor pan
- There are on 63’s diagonal braces under the front floor pans to transfer to the new floor work
- If you get near to the back seat area, the rear seat springs mounting brackets have to be transferred ( if you remove that area).
- All floor pans do not come with the drain holes cut out in the new sheetmetal. There are 6 inside the car and 2 in the trunk.
- On my floor work I cut out the drain holes on the new sheetmetal to match the original drain holes( I/ we even bend the edges down on the drain holes) drill new hex screw holes, use the original hex screws, and reinstall the factory drain covers over the open drain holes. I want my floor pans to look original even though they were replaced
Do you want pictures of our full floor replacement with the braces on 62 Chevy ?
I Used a jig welded Cars Inc USA floor pan with all the braces attached - much better than the overseas floor pan with braces.
Shipping was only $145 to western Iowa for the full floor pan.
Paul