A few days ago I purchased a 2014 Ram 3500 Laramie Crew Long Bed 4x4 to pull my 40' fifth wheel. The truck is really nice and is maximum steel with grey accent color. Anyway, should the tire pressures be set at what the door jam sticker says which is 80lbs front and 65lbs rear? I read somewhere that the inner tires should be a few pounds less. Any truth? What is a good tire gauge to check the inner tires pressure? The truck has the Alcoa polished wheels. Advise on how to keep them looking good would be appreciated. I ordered a 80 gallon in bed aux fuel tank since the truck only has a 32 gallon tank. I am having it sprayed with bed liner material since the truck came with the factory sprayed in bed liner. Aux fuel tank is made by ATTA. Any suggestion on does/don't with this truck? Thanks in advance.
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trebor4451
I run 65 in my front tires and 55 in the rear, 45 if empty. You need one of those long two way truck tire gauges to check the rear pressure.
Congrats! I always run the fronts at 80 psi, because the tires are just a few hundred pounds from being overloaded, anyway. When you're towing the 65 psi should be right. I run mine at 55 when I'm not towing, just to soften the ride a bit. I do run the inners a couple pounds less, but I don't know if it really matters - I just do it because it makes me feel smarter. 
For a tire gauge, I use Milton's truck tire gauge, the same one I've had for years, and ran on 18-wheelers - made in USA, available on Amazon, elsewhere. I'd avoid the Chinese-made ones like the plague, just my opinion, but based on experience, not prejudice...
For a tire gauge, I use Milton's truck tire gauge, the same one I've had for years, and ran on 18-wheelers - made in USA, available on Amazon, elsewhere. I'd avoid the Chinese-made ones like the plague, just my opinion, but based on experience, not prejudice...
Don't know what tires you have, but I follow the door placard recommendations, of 65 psi in the rears and 80 psi in the fronts....Have almost 12,000 miles on my truck now and tires still look brand new...no problems. Even contacted General just for the heck of it and they concur, (knew they would, tire manufacturer rarely goes against what vehicle manufacturer recommends.) I run with same air pressure whether loaded or empty and my truck is my daily driver. Truck doesn't ride any rougher that I can tell and again, no issues with tires...:thumbsup:
The one I have has the long stem and can get to the dually tires easily...Think I paid about $30 or so for it....It works great and lights up to where you can see what the reading is and one of the more accurate one's I've seen. the one's with hose, even the Slime is harder to use and tend to not work as well....
With my 39 ft fifth hooked up, i only have 6200 lbs on the back axle. I run 55 psi when towing my signature camper. Any more pressure makes a harsh ride and wears out the tire centers.
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