[rotorwrench]

Ford originally had no yoke at all since the motor bolted directly to the front cross member. The spring set up was developed to keep the front cross member from cracking. The illustrated diagram is the first of the Yoke/spring set ups introduced on a May 1928 service bulletin. They later opened the center hole in the cross member more and did away with the bushing since it started cracking there. They started using a leather washer under the leaf spring along with a large area steel washer under the cross member to allow more movement of the yoke. The leaf spring was eventually modified to increase it's strength.