Well my foot is heavy and I do freeway speeds of 75 so likely it's just driver use. Anyone use a t5 with 338 rear gears? I gather from reading on here the t5 is an option to increase mileage and it seems a swap I'm up for but not sure with the new gearing if that's still a good option.
I have a T5 in my '59, was told to leave the 3.90 I had because it fits the 5th overdrive gear very well. Someone else might chime in, but I think the 338 you have now is to high a rear for a T5 and you won't have the power you need when shifting into 5th.
