figure sk-32
figure sk-33
Cut the sides, sk-33, and seat parts, sk-34 according to the dimensions in the sketches.
figure sk-34
The seat is made from plywood as shown in figure sk-34. The two runners under the seat are to provide clearance for the brake cable. The seat will be held in place with several wood screws that are removable so the seat may be adjusted for different sized drivers.
Use sk-34 for side panel dimensions. Screw the back board to the brake housing and the side panels to the back board (sk-32) and frame sides.
Drill pilot holes and countersink for screws. Use glue on sides. The seat can be screwed to the frame with deck screws but bring an electric screwdriver to the race so the seat can be moved to accommodate different sized drivers, if the car is being shared.