Wheel/ Tire question WRT 4" BDS lift, with 4.11 and E4OD (see signature line for more detail) and yes I searched.
Current setup: 33x12.5x15 on steel UNIQUE wheels 15x10.
Option 1 setup: 17" Level 8 Trackers rims with 295x70x17R (gives it a 33.3" diameter), tire/wheel weight the same at current setup/ tire.
Option 2 setup: 17" Level 8 Tracker rims with 285x75x17R (gives it a 33.8" diameter), tire/ wheel weight about 10 lbs heavier than current setup/ tire.
the reason for this is the 12.5 BFG width on the pavement is giving outside wear despite every 6K rotations. I had the tires reversed from blackwall to whitewall to even things out. Plus the tire stick out a bit more causing more "bow" in steering linkage.
By running either option 1 or 2, the more narrow tire will pulll the wheels/ tires back closer to stock position and increase MPG, and turn radius.
Am I missing anything with this analysis. Of course if I go with Option 2, I will need to re-calibrate PSOM and make sure the near 34" works find with travel and backspace to the radius arm. Also, it does put a bit more strain on engine and gearing. Option 1 would be nearly no change, minus less rubber on the road.
Thoughts? This change is a look ahead to less maintenance, wear/ tear and hopefully better looks and performance.
Thanks for the input.
1995 XLT 5.0L, mileage 200K+, floor shift, D-44, Ford 8.8" (4.11) LSD, E4OD, BW 1356-->Mods: BDS 4"-ext. rad arms, 33x12.5 BFG, 15x10 rims, PSOM adjust, FIPK (57-2543), Hayden Trans Cooler (679), Warn manuals (20990,32720), remote tran filter (perma-cool 10677)