Can the 2nd and 3rd and possibly the 4th gear ratios be changed for a T-19 transmission? My current 7.5L, T-19 transmission is geared 5.11, 3.03, 1.79, 1.00, bought new in the 1986 F250HD 4wd and spec'd it with 4.10 gear. I really don't like the 3-speed spread in the road section gearing but love the 5.11 first for creeping around in the woods. I wouldn't mind even having a slight overdrive in place of the 1.00, but probably no chance of that. I will just have to up my tire diameter from 35" to 36".