1970 Mach 1 Transmission question
I have a 70 Mach 1 351 Cleaveland v4 motor FMX Automatic Transmission,2nd gear does not work, I would love to put in a beefy Manual Transmission..what do I need? What would be the cost to but and install a manual zf5 speed? or to rebuild and beef up my FMX or C4? What are your thoughts on both.