Quote Originally Posted by IC2 View Post
I asked this a while back, and if I recall, most said to start at ~28. I did, have but a bunch of miles on the car and----lumber wagon. Not bad on good roads, but since the most local communities with the exception of the town I live in, have no money, which roads aren't being repaired. I've wandered (search only) a few other sites and folks go all over the place. I'm gong to try 24/22 (front-rear) but will welcome other suggestions.
Dave,
I have not done in on mine yet, but for the wide rear tires the best way to find the ideal pressure for ride and wear is to find big deserted parking lot or stretch of road where you can put a heavy chalk line across the tread, drive across the lot and see where the chalk is wearing off. Start high, like 28psig, chalk the tires and you'll see that it wears off in a center stripe (overinflated). Re-chalk, drop the pressure to 26 and drive across the lot again. Repeat until you're wearing the chalk off across the tread pattern, but not to the point that you leave a band of chalk in the middle (underinflated). I expect that you'll find 24 psig rear about right, but it may even be a bit lower. Harder to do on my 5.60x15 fronts as they're so narrow, so I'll likely follow your approach and run a couple of pounds higher than the rears. My Jeep runs 25psig on 33x12.50's and they wear right, and ride much better than with the 35 to 40psig that the tire store puts in them.