Distributor gear roll pin. Need some expert guidance. in Engine, Transmission, Drive Line, Etc Posted July 12 Ok I did the sending unit today. See the pics with the quality differences between the Ford unit and the Taiwan unit. Taiwan, the ground pin is poorly designed and broke easily. The Ford unit is bolted through the header Taiwan unit has no insulator around the pins for the harness boot to seal too. Therefore all the harness related stresses go directly to the pins on the Taiwan unit.