PSI?

[rd1myers]

I found this tire pressure calculator that converts stock tire psi/ratings to a different tire/rating.

https://tiresize.com/pressure-calculator/

On my truck, stock tires are LT285/60R20 E 125; and new tires are 35x12.5 R18 F 128.

According to the calculator, the recommended F/R PSI of 65/80 converts to: 55 front/71 rear on the new tires, based on the different rating and load capacity.

I still need to do the chalk test, but perhaps a good starting point if you found a PSI you liked (or want to run recommended pressures) on stock tires.

 0 Comment(s)

[Mdavlee]

I always run about 65-70 in the front and 60 in the rear empty and 80 in the rear with my fifth wheel.

 0 Comment(s)

[SyN]

35x12.5x20 toyo atll- I run 65psi front and 50 rear unless I am towing heavy.

It rides WAY better than 70+ psi before I could change it.

TPMS Is set to 30psi so I will know if I get a flat.

You could always do the chalk test as well

I run the same!

No way am I going to run over 60psi in the rear tires unless towing - there is NO reason to!

Only thing is see from this is possible uneven premature tire wear. (If not loaded 24/7 where the full tire contact patch is in contact with the tarmac)

 0 Comment(s)