I found an awesome truck for sale today that I am considering - engine and tranny have been overhauled and everything is stock and NICE - price is very good ... but I do not like the low gearing and was wondering if the gearing can be changed to make it drive 65 - 70 mph? The one I am considering is a 53 chevy 3600 with 216 ... and the granny gear ... I also have a 1955 MG TF 1500 and one of the things I have put up with for 40 years with her is the same issue of about getting run over on the highway because of the low gear ratio ... Advice?