225/75 R16
My camper sways all over the road when traveling in moderate wind. I had the front end inspected and the steering dampener replaced. The tires are only 2 years old, but I'm wondering if replacing th...
Forum Discussion
Those who said "interesting" or "peculiar" are right. There is usually a Chassis builder (Ford in this case) label as well as the one from the Coach upfitter (Winne in this case). The one from Ford will show the pressures needed to carry Gross Axle Weight Rating Front (GAWR-F) and of course GAWR-Rear. If the Chassis is under a Box Truck and you want to carry the most watermelons the Chassis is rated for, then those are the Front and Rear pressures.
Usually, perhaps recently, the Coach upfitter label would show the same pressures (for MAX Load, remember) that Ford did. Liability stuff no doubt. But years back the Upfitter DID recommend their own set of pressures. I think that's what we're seeing here. Winne did not believe that its coach would reach full GAWR on front or rear, and specified pressure accordingly.
In other words Winne anticipated 7500 rear with that 55 PSI dual tire pressure number. Likewise the 50 PSI single tire pressure for the front anticipated about 3900 front. Again, I think they shy away from that now on liability reasons.
Also note that stated GVWR is less than the sum of the axle ratings, suggesting they allowed for a little weight imbalance within GVWR.
They don't do that anymore either. Front + Rear GAWR's = GVWR
1997-2007 E-SuperDuty/E-450 is 4600 front and 9450 rear 14050 GVWR
2008-2018 E-450 is 5000 front and 9500 rear 14500 GAWR.
