- Feb 24, 2002
If you insist on running a c-4 with miss matched gearing then you better have a really big aftermarket tranny cooler. or go back to 29 inch tires. You hurt that Bronco C-4 beware they are getting harder and harder to find one to replace it. Ford C4 were retired in 1981 that's over 40 years ago. 45 years ago in the 1977 bronco. Cant just run down and pick one up these days.