Need a little input from someone knowledgeable in the engineering of selecting the proper Tires and Rims as related to the GVWR of the coach.
Not sure if anyone else has run into this problem but from the feedback I am getting from Lionshead (tire and Rim dist to FR) and FR it sounds like no one has questioned this.
In my attempt to replace the "failed" Trail Express I selected a replacement set of tires only to have the Tire Tech at the store refuse to mount them on the existing Rims. He was concerned about Liability issues if he did and provided me the PDF attached.
The RIMS I have do not have a PSI stamped on them, but do have a Max 3200LBS stamped on them, the original tires have a 3520LBS at 80PSI stamped on them. The tires I wanted to buy are 3450Lbs at 80 PSI.
Now the issue, since my unit GVWR is 14,001, my axles are 6K, I need tires to support GVWR per the highway safty doc (PDF), but since my RIMs are only 3200LBS the store Tech would not mount a tire that had to be run at 80PSI to meet the GWVR application of the coach which put it at a higher poundage level than the 3200Lbs.
Can someone tell me how this really works and if the tech is correct?
I get the delivered tire number part (how it came from FR, only using the tire number)
3520lbs x 4 = 14,080 (higher than my GVWR)
but still that is higher that the RIM 3200LBS.
Is FR delivering these units on under sized running gear, as well as cheap tires?
If this is correct then I also need to replace the RIMs.