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Tire Pressures?

demiles
Explorer
Explorer
I’ve noticed that 1/2 ton trucks have the same recommended tire pressures front and rear while 3/4 ton and up always have a pressure offset front to rear. Why don’t they run a offset on 1/2 ton trucks? What do you think?
2008 Jayco G2 28RBS
2016 Nissan XD 5.0L Cummins
17 REPLIES 17

SidecarFlip
Explorer III
Explorer III
KD4UPL wrote:
1/2 ton trucks tend to carry about the same weight on the front and rear axles when fully loaded. Look at the door sticker on the jamb and you will see the FAWR and RAWR are pretty close.
2500 and 3500 trucks are designed to carry a lot more weight in the bed so their RAWR is generally several thousand pounds higher than the FAWR, thus the tires need more air. The front of either truck generally weighs about the same no matter what since the cab, hood, engine, etc. are basically the same across 1500 to 3500.


Unless it's a diesel or 4 wheel drive. Then the front is heavier than a gasser with 2wd. My 1 ton rear tire pressure is 10 psi higher than the front.
2015 Backpack SS1500
1997 Ford 7.3 OBS 4x4 CC LB

KD4UPL
Explorer
Explorer
1/2 ton trucks tend to carry about the same weight on the front and rear axles when fully loaded. Look at the door sticker on the jamb and you will see the FAWR and RAWR are pretty close.
2500 and 3500 trucks are designed to carry a lot more weight in the bed so their RAWR is generally several thousand pounds higher than the FAWR, thus the tires need more air. The front of either truck generally weighs about the same no matter what since the cab, hood, engine, etc. are basically the same across 1500 to 3500.

Artum_Snowbird
Explorer
Explorer
I have caused undue wear on tires because I overinflated, and underinflated tires. The absolute best way to adjust pressure is by taking the truck ready to roll over a scale that scales each tire... or at least measures both fronts and both backs. Then look at the tire specs and see what pressure you need to carry the load you have.
Mike
2012 Winnebago Impulse Silver 26QP
2005 16.6 Double Eagle
2018 Jeep Wrangler JK
previously Snowbird Campers,
Triple E Motorhome and Fifth Wheel