Hello,

I just bought 4 used 31x10.5x15 ProComp Mud Terrain Tires and had
them mounted on a 1990 Toyota 4x4 SR5 V6 extra cab.
The tire shop aired them to 35PSI. I just let out some air to 30PSI.
They seemed to ride better/quieter at 35PSI, but I'm concerned about
Tire Wear. Does 30PSI seem about right for these tires?
A toyota 4x4 is probably lighter than a lot of other trucks, so maybe I
should have a higher PSI(like 35PSI)

Thank You,
Joseph Page

On 26 Nov 2006 15:39:03 -0800, "PullTab" <PullTab (AT) gmail (DOT) com> wrote:

For optimum tire wear, you want equal pressure across the tread width
of the tire. Generally, on a lighter truck, it means less air. On a
heavier truck, it means more. I'd start with the pressure recommended
by Toyota for the stock tire. (That pressure will likely be higher
than you need.) From there, I'd drop the pressure until it is "just
right". How to find "just right"? I've read where you should make a
wide chalk line across the tread and drive down the street and check
it for wear. You are looking for it to wear evenly across the width.
More wear in the center means too much air. More wear on the outer
edges means not enough. I've never tried this method though and
usually just watch the tread for abnormal wear.

Hope you like your new tires. I have a brand new set of the same
waiting to go on my AWD-to-4x4 Safari Van project.

Matt
99 V-10 Super Duty, Super Cab 4x4

I also watch the tread wear, but that sounds like a good technique.

It is a good technique. I use it whenever I put on a different set of tires
to be sure i get the right grip.
Tomes

"Ed H." <edo.hart (AT) verizon (DOT) net> wrote