my 1997 ran at 3 grand at 55, i not sure about my 1992 thou, i would guess there the same, so would that mean a diesel would run at the same rpm, i am just running 205 for know in tires, but will eventually go to bigger, so a lower gear ration would be better right? 1992 came with a 5.12 ratio
There are some realy good calculators out there for this sort of thing. But I don't know where they are off the top of my head. Did you (if not do so ) try doing a search for gearing calculators or just calculators. I'll see if I can find it too.