Tire Load/Inflation Calculation
Exactly three years ago I bought new tires for my Jayco 23' (27'OAL). I had previously had the trailer professionally weighed at an Escapee's weigh station where they weigh the load on each tire. Unfo...
Forum Discussion
rfloyd99 wrote:
Cummins, good question. I've been running 55 psi (I check it often) and have pulled TT maybe 12-15,000 miles on these tires.
I'm headed over to the trailer now and will carefully inspect all four tires. Unless I have some uneven wear issues, it seems that the opinions here are leaning toward 50 or 55 psi being the best choice.
Now, any ideas about that tow vehicle psi?
Your truck, your trailer, with the info you've given, 50-55psi is perfect for the trailer. The slight change from 205-C to 215-D tires is not a cause to change much, if anything.
Rear wheels of the truck, I'd be in the 45psi range, possibly a bit higher if it's feeling squishy, to add stiffness and better handling to the @ss end of the truck.
Front tires, you're presumably not adding much weight, if any, from running bobtail. Possibly even a shade lighter unless you're going ham on the wdh weight transfer. Fronts I'd also be at about 45psi, possibly a bit higher as well, unless they feel "too" stiff.
This is presuming you're running P/XL typical 1/2 ton tires still. Wouldn't change much if running D or E tires, maybe a shade lower than P/XL if they feel too hard, due to thicker tire carcass having better lateral stability and less flex, comparatively.
