Re: Packard rear end gear ratio and LSD/TT

Posted by Owen_Dyneto On 2019/3/12 10:12:04

I don't think you need to consider other makes of vehicles unless you absolutely want limited slip. With Ultramatic the 3.54 rear axle was usually supplied and it should let you cruise reasonably effortlessly at 65-70 mph all day long. And if you want something taller, Packard offered a 3.23 ratio as well for the '53 Patrician. So if you go with an overdrive transmission, there would seem to be no reason to change the rear axle gearing.