I.m not really looking for an automatic tho guy. . . But killer deal. . .
the 5.9L don't redline till 3250 like the 7.3/6.0L. . .so i figured i could whined it up to and hold it in the 2400-2600rpm zone. . .
Gear options: 4.88,5.13, and 5.29. . .tho i have heard tell a rare few had 4.30's in the 4x4. . .
I calculated it with 225/70R19.5's the stock size. . . 245/70R19.5 is the optional size but i can get 265/70R19.5's to fit the rim's. . .
what i may do is see if the 10 bolt 19.5's are the same as the small 10 bolt 20's and run like a 7.50-20 there 35"-37" tall depending on brand. . . or i'll have stuff the 265/70R19.5's 34.8"-35.2". . .
Worst case I put the 245/70R19.5's and only run it 65!

! mph!. . .
Mike