you will loose towing capability with taller gears too. not a lot, but with a 6.5 you will notice the power loss pulling your dozer around! Especially trying to climb any grade. I didn't really save much on fuel mileage doing mine, but I am more comfortable keeping it at 70-75 not worrying about the rpm's as much for long trips.
Now with the 93 having 4:10's and the gear vendors unit, that is a night and day difference even between the 95 with larger tires and taller 3:73's the 93 has 245-75-16's and it runs just under 2000 at 70. my tach is slightly off, when I checked it with the TCC controller display, it was showing about 1900 doing 70. the funny thing is when it's locked in OD and 4th, when the TCC locks up the rpm will drop almost 400 rpm seeming like an extra gear! I know it's a huge expense over just swapping gears, but after experiencing the difference between the two, having "double OD' is well worth it. If you remember the old long nose cars like the olds and caddys back in the day what would float down the freeway, this 93 will float almost as good LOL this old truck has three things going for it.... it can tow (somewhat with the old worn out engine), it can cruise the freeway, and it can fog for mosquitoes all at the same time. HAHA!
