Rear tire pressure dually
Just changed from a TT with 1200lb tongue weight to a fifth w approx 4000 pin weight. Haven't gotten to the scale yet. I'm confused.... placard on truck door says tires rated at 2660lbs at 65psi for r...
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rhagfo wrote:Obewan wrote:
Just changed from a TT with 1200lb tongue weight to a fifth w approx 4000 pin weight. Haven't gotten to the scale yet. I'm confused.... placard on truck door says tires rated at 2660lbs at 65psi for rear duallies. Michelin load rating says 2778 at 80psi for duals. Should I inflate to 65or 80psi? Didn't have to think about this as much with only 1200lbs. Always kept it at 65.
Well if you inflate to 80 psi that is a total of 11,112# of capacity, do you need that much?
At 65 psi you have 10,640# of capacity, so hit the scale and get your loaded and unloaded weights, my guess is 65 psi is more than enough.
X2, inflate your tires depending on the load, no need to run at 80 PSI with rough ride if 65 or 70 lbs will handle the load.
