The pedal arms are fabricated from 1/4-inch steel plate. Check the foot-box measurement and draw out the design on heavy cardboard for a cutting template. Any welding shop can cut the steel plate. A 7/8-inch hole is drilled at the top of the pedal arm for the 4-inch long support pipe. A 3/8-inch hole is drilled in one arm for connecting the brake master cylinder's push rod. At the very end of the pedal arm a 1/4-inch hole is drilled to attach the pedals.