Tire Air Pressure
Just picked up my new GMC 2500 6.0. Tire are Michelins size 265/70/R18E. Tires are set from dealer at 70lbs. What is the best tire pressure for towing my 8000lb TT. Max PSI is 80lbs Truck is used mo...
Forum Discussion
jus2shy wrote:Cummins12V98 wrote:
Your front tires will be worn out in no time with that low of pressure on the front with the heavy Cummins up front.
You have the 45 rear part right now air up to 72 in the front. The ride won't be much different and your tires will last.
If a 150 ride is more important than disregard the above.
That's what I initially thought as well, 60psi is recommended up front. Running at 60psi unloaded, I wasn't getting the full foot-print on the road. I was getting like 3.5 ribs out of 5 ribs contacting the front patch. I think it might be due to RAM using a wider tire now a days. Stock tire size is now 265/70r18. Far wider than the 245's used on duallies and older trucks. So I had to air down to ensure that the shoulders were bearing some of the load versus center tread.
Keep a good eye on them. What a lot of people don't realize is the contact patch on the front increases when you apply the brakes. Also when turning the edges will wear even more with less air pressure.
