You Don't Need Lift Or Blocks
I run 285/75/16's under all kinds of conditions w/o lift but trim some.
Frt bumper can be trimmed about 1" at edge of fenderwell, or you can shim it forward w/washers, or short lengths of pipe maybe still use same bolts.
Rear of fenderwell from about mid well height down to rocker needs to be trimmed, or rolled on a taper from zero at mid height rear fender well to about 2" at bottom of rear fender well.
You may have to adjust the above more or less but it works, been running em for some time now.
Back of truck needs nothing to run 285's
Smallest rim for 285's would be 7" which is .50" narrower than recommended width, I use ALCOA 16"x7" all around their capaticy is 3750 lb load rating ea.
Last edited by DA BIG ONE; 11-18-2006 at 21:18.
Reason: TYPOOOOOOOOOOOOOO
99 GMC SUB, 2500, 4x4, 6.5 TD (F) #H32 enhanced blk, Phaser timing set, B&D IC, 3" ATS exh, K&N w/prefilter, 4WD NVG 246, 4L80E kevlar Transgo off road/tow mods/B&M supercooler, 14 FF MagTec w/locker 3.42:1, 9.25" IFS frt/diff 3.42:1 w/ARB locker, AutoMeter Boost & pre-turbo pyro meter, 12,000 lb hydro winch, Warn classic bumper w/brushguard & diesel scoop, Max E-torq Stage 3, hi pop inj, oil bypass sys, on board air comp for front ARB locker & tire inflation, DynaView driving/auto-cornering lts, DZ nerfs, A/T 285/75/16 SilentArmor 3750 lb rated on 3750 lb rated Alcoa, 3 IP drivers 2 r spares.