OEM 1/2 Ton LT E Tire Pressure

Since many light trucks are replacing P rated tires with LT tires, I thought posting the OEM door sticker tire pressures for LT tires on a 1/2 ton truck with OEM capacity for a soft-side truck camper would be helpful: 55 psi front and 60 psi rear for E rated LT tires for 8200 lb GVWR. We have run over 25,000 miles with the camper and the tires set to the door sticker pressure (55/60 psi) without any problems and plan to continue operating at the door pressures.

The timing of your post is perfect. The P tires on my truck are being changed out for LT tires tomorrow and I needed to find out what to set the air pressure at with the camper installed.

Good to get the information from someone who has real experience rather than a guess from the tire store.

Thanks.

iowahiker said:

…. for 8200 lb GVWR.

Click to expand...

Your F-150 has a 8200 GVWR? that's great…the highest I've seen on F-150 window stickers on the dealer lots is 7350 or 7400. Wow, 8200 is approaching 3/4 ton ratings. What is your payload, have you weighed the truck?

I'm anxious to see the 2015 F-150's !

That's the heavy duty payload package with 7 lug wheels. I would have gone for this with the ecoboost motor if I could have found one without having to special order it. The new F-150s will be really nice I'm sure!

I have not weighed the truck but it is base trim so 5500 pounds and 2700 pounds of payload with the tailgate off. We special ordered the truck since the payload option is rare. The dealer told us 1-4 months delivery but it arrived in three weeks. We love: the 36 gallon fuel tank, the 5.0 liter V-8 has plenty of power, tons of brakes, 15-16 mpg with the camper, 19-20 mpg without the camper, the payload package springs (front+rear) are great with a nice ride with the camper on (jittery without the camper) and the 8' bed/Granby room but we have the regular cab. The Ford 3/4 ton was the same price but we wanted the larger cab of the 1/2 ton and the better fuel economy and the larger gas tank. We are hiding in Lassen NP and so cell connections are rare.

You should be able to air down the rear tires a bit when the camper is off. I used to back the pressure way off the rear tires on my Sprinter van when I didn't have weight in the back. When I brought down the rears to 55lbs from 70lbs (no load) I still wore the center of the tires more quickly.

My truck still has the stock 112T tires and they call for only 30/33 frnt/rear. For reference my truck is a 2014, Tundra, Reg Cab, Longbead, 4x4, 5.7L. The weight is 5340 full tank, as measured on the local scales yesterday.

Good evening gents,
my 2 cents. I have done much research on tire pressures. Im a driver operator and am very picky about the pressures run in my truck at work and at home. There is an inflation chart with most tire manufactures. These inflations are for paved roads. The inflation stickers in your personal truck and the placards in a professional differ slightly.
1. personal truck inflation sticker - that inflation value is a joint reccommendation value. joint between the auto and tire manufacture for the actual wieght of the vehicle with a reccomended pay load of people and standard cargo. with the original tire at the time it rolls of assymbly line.. now generally within a pound or two if you replace that tire with the same exact size and rating the door sticker inflation will extremely close.
2. professional vehicle placard - is similar but with the exception that it will normaly give the maximum inflation for a specific size tire that is capable in rating to carry the maximum of vehicle and cargo. GVWR - gross vehicle wieght rating.
3. if you have change your tires mgf, size and rating....
4. Wiegh your truck. AVW - actual vehicle wieght and AF/RAW - actual front and rear axle wieght
5. Find the inflation and wieghts chart for your specific tire from your tire manufacturer.
6. Set your pressure accordingly, remebering cold tire pressure. A cold tire pressure is a tire that has not been driven on for 3 hours, allowing the contained air temp to equal the ambient temp.

Good luck