gmw photos wrote:
Dan, I would suggest doing some reading on the off road forums. I think you'll find that most of the guys will say that somewhat lower pressures will help you avoid rock punctures.
EDIT: My feeling is there is no situation, at all, for those tires on that truck where you would run 80 psi. Or even 60 to 70. The truck just can't carry that much load ( weight ).
I also have a F350 dually with load range E ( 80 psi max ) tires, and even with the 14K pound horse trailer on the back, I don't run 80 psi ( but, it's got four tires in the back, but still, there is more weight on the back axle alone than what your Tacoma, or my Frontier weighs in total. I'm usually at 5600 to 5800 on the rear axle ) And at that I run 60 in the rears and 70 in the fronts.
profdant139 wrote:
gmw, am I reading that right? You put more air in the front than the rear when towing? I guess I had it backwards!
And you are right that I am not coming anywhere near the load limit on those tires, so I guess I can back down from my high pressure settings. I don't want to run the tires so low, however, that the sidewall flexes and heats up the tire during normal highway driving.
And on the third hand, more psi equates to better mileage, but too much psi will cause wear on the centers of the tread.
Well four tires carrying 5,800# is 1,450# per tire!! about half of the tires 80 psi capacity. the front is likely close to 4,500# which is about 2,250# per tire closed to the tires capacity.
Those that run 80 psi in DRW TV, and complain about ride should hit a scale loaded and unloaded and adjust tire pressure according.
I don't run 80 psi in my SRW 2500 at 5,500# on the rear axle usually about 65 psi, then 45 to 50 psi unloaded. It is about traction and ride!!!
