There should be a ton of info on these topics if you search. I have 35s with 4.88 gears, thats about as close as you can get to keeping the speedometer accurate. Lower gears (5.26) will make it harder to use your truck on the freeway.


96 T100 4x4 - 35's, 4" SL, 2" BL, 4.88s, ARBs, custom bumper & E9000 winch, etc.
99 F-350 4x4 superduty supercab turbodiesel longbed