On my 1957 NAPCO. I installed an OD trans (first gear synchro) and 3:38 differential gears. Works great, but I am pretty careful at 70 - 75 mph, I usually don't go above 65 on the highway. I did install front disk brakes (strangely enough, the stock front NAPCO brakes are early Studebaker). Typically I am on 2 lane or city roads where naturally I go slower. I do have a warmed over 348 engine that has lots of low end grunt to make up for the 3:38s.
don
Last edited by Donsz; 03/03/2022 3:53 PM.
