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 ...
Discount Nissan 350Z Fuel Pump Clutch Pedal Assist Spring For Nissan 350Z & Infiniti G35/G35S 6MT - Improves Pedal Feel 2006 ...