figure sk-19
Cut two 2″ x 4″ pieces 29 3/4″ long. Each piece has a 1/2″ x 1/2″ groove cut along its length, offset from the center per sk 19. This groove is for the 1/2″ diameter threaded axle rod. The groove should be a little on the tight side so the axle rod is held firmly in place. Two 3″ mending plates are placed over the axle rod and secured with wood screws as in sk-20, and prevented from turning by one or more wood screws placed between the rod and the edge of the grove. The front axle has a 1/2″ drilled in its center for the axle bolt. It also has two 1/4″ holes drilled at the ends for eyebolts.
figure sk-20