tread wear question

[zonki00]

i just got some 33x12.5 general grabbers and there on a 15x 10 rim but it looks like there only wearing in the middle of all the tires. is this because the trucks light and i have them at full pressure? and should i drop the pressure?

 

[kcm1582]

In a word , yes.

Around 30 psi would be much better.

 

[Bennybooster]

30psi or lower

 

[zonki00]

alright cool thanks

 

[Hahnsb2]

Full pressure should only be used when running at max weight. Some tires vary, my swampers like 20PSI. I'd try around 30 and see what happens.

 

[RavoHimself]

the best way to find out what tire pressure you should have is to spray down part of your driveway with a hose then drive over it. keep lowering the air pressure until the whole tread is wet. this gives you your own personal air pressure that is set up for your truck

 

[4x4junkie]

I would not suggest going below 30 PSI no matter what, you'll start cutting too deeply into your MPG, as well as overall life of the tires (them wearing evenly won't matter much if they don't last very long).

To keep the wear more even, you should rotate your tires more often (about every 5000-10000 miles or so).