Tire pressure for 245 tires?

[Smoke chopper]

Greetings. I am a new member of this site having just bought a new '03 2500HD D/A and loving it. I am wondering if anyone has experience at how low you can run the stock tire pressure and still have good wear. I run the truck empty 90% of the year, that is not pulling a trailer or putting anything in the box. Can I get away with 40 PSI in the front and 30 in the rear? Any comments?

[Gasman1075]

My truck came with 45# all around and I upped the fronts to 52 because I felt that it was squirmy. It seems to handle much better now. I will run 75# in all when I pull my 5th wheel.

Walt

[mark45678]

I have firepops steeltex tires on mine the front needs 44~50 and the rear would be ok in the low 40's with out a load! I would not run it much lower then this in fear of poping a bead.. trailering I pump the front up to 55 and the rear to 65~70 this helps firm up the side wall of the tire. I cant wait to get new michelins these firepops are by far THE WORST tire I have had to use up........LTX AT's 245x75x16 E mid winter....38K on the truck now 14 months old

[3176CATPOWER]

Had a 2001 8600 lb.three-quarter ton with steel-tex,run 55 lb. front and rear except when putting a load on,then jacked the rears up,18,000 miles,perfect wear.My 2002 H,D. with Bridgestone high-way ribs I have runned 58 lbs. empty and at 15,000 miles looks like perfect.My experiance with these two trucks and the half tons I have had is run tire pressure on the high side,high speeds demand it,check it with seasonal temps and rotate your tires on a regular basis.More load on the rear, more pressure on the rears.

[srubrn]

My door says run 55 front and 80 in rear. I did and the back tires started wearing faster than the front. I lowered to 55 rear and the wear slowed. Got 22K on firestone now. Should make 30K or 35K

[David Utz]

Weigh your truck empty (front and rear). Look at the sidewall weight and pressure ratings and scale the pressure to your per tire weight.
example: tire rated 5000 lbs. at 100 psi. max rating and you have a weight of 5000 lbs. or 2500 lbs per tire. 50 psi. will be your target pressure.