what tire pressure does everyone set their tires at? the door says 50 on the front and 80 in back. i an see 80 on back if you're towing alot but i rarely tow/haul anything.
i've got 50 all the way around and i'm still getting wear on the inside tread and alittle on the outside. granted, when looking at the front of the truck the front tires look like this / \ but the wear seems a bit excessive unless it's caused by low tire pressure. it's been aligned twice, i will soon have eccentric bushings installed to fix the tires leaning in provided they can get the old ones out.

 

It depends on what your tires are rated at it will tell you on the tire itself.
But if your tires are leaning in they are going to wear bad not to mention drive bad.
Besides Obama said we would inflate our tires to proper specs there would be no reason to drill for more oil.

 

tpolley,
You may want to check the front spring shackles.
The top of the front one wears out, you can't see it unless you drop the shackle out of the frame.

When I thought my front springs were shot, I went to change them and discovered the bushing and 1/2 the bolt was gone.

Changing the shackles raised the front almost an inch, and the tires sat almost straight up and down instead of the / \ look.

IFS front axles do not like the \ / look either, they would rather be slightly / \ than the other way.

 

you should have E load rated tires on it i have found 70 psi a good number over the years

 

60 psi front and rear seems to work on mine. Another 20psi in rears if I'am going to haul a load.

 

The door sticker for my truck calls for 50 PSI on the front and 80 on the rear. I tried 70 on all corners but it tends to put too much wear on the center of the tires with how light my truck usually is (6000 empty). I'm currently running 60 psi on all corners.

 

Mine are at 50/50 and always have been unless loaded 55/80 with a large camper in the box. I wish I could get mine back to the top inward lean..... mine are verticle I I now and it rides like a tank. Never had any abnormal wear on any tire since new........

 

I run my tires at rated pressure.

Interesting fact. 10% under rated pressure is considered flat by DOT. Running tires to low can cause them to "zipper" and blow out. Ask Ford and Firestone about that.

 

i try to run 55 (like the speed limit) all the way around but don't check them as often as i should. unless i've got the bed empty, it rides pretty good at that pressure. empty, it's a might stiff and our roads let you know it. figure that since it don't matter on the fuel economy if i've got about 800 pounds in the bed or empty, i'll just leave the weight in and make it ride better. lol

speedrdr

 

Huh? 70 psi is considered flat according to DOT? Are you going by the tire rating or the rating on the certification sticker of the truck? I'd like to run my tires at 80 psi all aroung, but I know they'll never wear right like that.

 

If you don't have B plates (commercial plates) and DOT numbers on your truck you will probably never talk to the DOT guys.

 

They pulled my dad over 20 years ago and told him he needed commercial plates, DOT numbers, Commercial insurance etc. etc. to pull his own cotton wagon from the plant he bought it at to his farm, wrote him $4000 worth of tickets. He went to court and they threw it all out.

 

Unless said cotton wagon was a total beast, many 5th wheel RV trailers when fully loaded are heavier than the empty wagon, so according to the DOT occifer your dad encounter we should probably all drive commercial trucks to pull our RVs... must have been end of month, and he was worried about his quota.

As for pressure - IIRC I run 65 all around, seem to be getting good wear patter in the front (rears are already worn out so I can't tell there), truck also handles well and rides fairly smooth, so I think 65psi works out good for me.

 

RV's are exempt.
If it looks like you are making money with what you are towing, Class B -plates, DOT number and CDL for anything over 10,000 pounds towed behind a truck/pickup.

 

DOT goes of the weight rating on the tires. The max load rating on the tire side wall is at the psi on the tire. Tires have to have that psi cold. What they mean is. Say your tires are 10 % under the side wall psi. That means that they can't carry the rated weight. DOT doesn't recognize a "low" tire. It is either properly inflated or "flat".

I don't pay any attention to the stickers in a vehicle. Those pressures are figured for a good ride. Thats what got Ford and Firestone in trouble. It was on the news that the tires were bad. They weren't bad tires. GM used the same tires out of the same plant at the same time. Ford adjusted the pressures to help the ride and Firestone agreed to it. The tires zippered and blew out. Also people change tires. We had a problem where I work. A guy had tires put on his work truck, 1/2 ton 4x4. Anyway the tire shop was out of his tire a put load range E's on the truck. No big deal but instead of going of the proper rating for the tire they went off the door jam. Need less to say that 45 psi in an E tire caused some problems. You had to herd the truck down the road and one tire blew out. He pulled a trailer allot. Not a big trailer for the truck either.

I run rated pressure in my tires and they wear fine. I don't drive fast allot and that can make a difference. Most of the tread on a tire is worn off when you are stopping. Providing the automobile is aligned correctly and a person isn't driving faster then the tire is rated. If you see the out side edges of a tire are wearing or scuffing that is from excessive speed for that tire. The wear may be very obvious or slight. That is a common tread wear pattern that most people don't realize it is from that. I see it allot on road tractors.