Quote:
Originally Posted by R & S Woodie
Just had new 3931FB delivered Monday to a campsite in Arcadia, Florida. Now we have to get truck ordered. We see discussion on weights but we don't see how this formula works. How do we determine hitch weight?
Either the Diesel, 4x4, F3500 SRW or DRW can more than handle the 16,500 GVW of the fifth wheel but what is the formula to determine the hitch weight which will determine if we must go DRW? We had transport tow truck stop at the scale so we do have the weight of just the fifth wheel, plus a separate ticket with fifth wheel and transport truck. Would really appreciate the formula to figure this out. We are coming from a motor home so this is all new to us.
Thanks!!
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This is the simplest answer I can think of for you...
Hitch weight should be 15 - 25% of the RV weight. Instead of trying to figure out the actual RV weight, just take the RV GVWR and multiply that by 25%. In your case that is 4125lbs. Just find a truck that has a cargo capacity and axle capacity greater than 4125lbs. The other thing I would do is add the GVWR of the RV to the GVWR of any potential truck and make sure the truck's GCWR is greater.
This is an example using my truck and RV:
RV GVWR = 16960lbs
Max pin weight - 25% of 16960 = 4240lbs
Truck cargo capacity = 6460lbs
Truck axle rating = 9650lbs
Max pin weight is well within the truck numbers
RV GVWR = 16960lbs
Truck GVWR = 14000lbs
16960 + 14000 = 30960lbs
Truck GCWR = 35000lbs
Max RV and truck weight is well within the truck GCWR
By doing this simple math, you will almost never have an underrated truck.
Hope this helps.
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