Bill Upham at Mansfield Mustang has reproduced the ’71-’73 Mustang upper clutch return spring, which is PN D1ZZ-7523-A. This spring is correct for your Boss 351 as well. You can contact Bill via email ...
We may receive a commission on purchases made from links. Given the importance of your Harley-Davidson's clutch — it allows you to engage and disengage the engine's power — riding with a faulty one ...