"Way back", I bought a new 1965 Ford 500XL HiPo (390/330) with 4.11 posi gears. It showed up with 3.25's. The dealer had to change them out - and he had to replace the spool as well as the gears - I watched the process. I would make absolutely that you didn't need a different spool as well - and I for sure am not the expert
Last edited by Irelands child; 10-24-2009 at 12:34 PM.
Reason: Change spool for carrier error