OK, so we have been making pretty good progress at my FED project lately. Fiberglass seat is nearly finished and ready to trim to fit the contour of the shoulder hoop, but wait. How is the upholstery going to attach??? I am hesitant to use the approach most used - drill the hoop and screw the snaps directly to the frame. I am concerned first about an opening & corrosion and second to a lesser degree about the strength. I purchased a crashed car for its parts and the upholstery holes certainly were stress risers.
A friend suggested gluing the upholstery to the fiberglass seat... but I like the idea of separating the upholstery in case it ever got rained on.
Any other suggestions?
By the way my build is a 144" car, and want it to look like they did in 1964: