Hello,

What tire presure should I run in 33X12.5 on 10" rims for my 1993 Bronco. Tires say 50PSI seems much too high for a light truck.

Billy

 

I run my 32x11.50's at @34lbs for highway. about 25lbs offroad. A friend that had 33's ran his about there too.

 

Put in approx what you think is good, then take a piece of chalk run it across your tires and then drive it a ways. Check to see where it is wearing and adjust the pressure accordingly. No wear on the edges lower the pressure, no wear in the middle increase the pressure. Do it on all 4's the rear pressure might be different. Then when the wear is right your good to go

 

34 PSI seems to work well 32X11.5 on 15X10 rims

 

I run about 35 psi on the street....50 psi would give you a pretty rough ride I think.

 

Nice trick Tazman...,
I'll have to give that a try.I run 36-38 cold,18 when I hit the beaches.

Sudsrat
Go Fish!

 

I have to keep ~45psi in my 32s for a nice ride, but my truck carries ~1,000lb more than the average Bronco. I have a chart from a Ford TSB that shows how to adjust tire pressure...

 

The PSI on the sidewall of the tire is the MAXIMUM pressure for the tire. You normally wouldn't be near that unless you are hauling more weight than normal. There are lots of variables, but usually somewhere around 32 or 34 is a good place to start, then try the chalk test.