Keystone Raptor axles/tires rating

GVWR and GAWR are two totally different numbers. The FMVSS 571 does not mandate the GAWR and GVWR be the same thing

Yor talking about what has been in the past and was correct prior to 6/15/'08 when the new regs were put in place.

571.120 S10.2
On RV trailers, the sum of the GAWRs of all axles on the vehicle plus the vehicle manufacturer's recommended tongue weight must not be less than the GVWR. If tongue weight is specified as a range, the minimum value must be used.

As I've said before, one TH member in '08 has alredy used the new 571 regs to force his TH manufacture to install higher rated axles to match the trailers GCWR. I'm simply passing along previous info.

The new regs were the result of The May Petition

In a petition dated January 21, 2000, Ms. Justine May petitioned
NHTSA to amend Federal Motor Vehicle Safety Standard (FMVSS) Number
120, Tire selection and rims for motor vehicles other than passenger
cars. Ms. May requested that FMVSS No. 120 be revised in such a way
that motor vehicles would be equipped with tires that meet maximum load
standards when the vehicle is loaded with a reasonable amount of
luggage and the total number of passengers the vehicle is designed to
carry. Ms. May's stated reason for her petition was her family's
personal experience with a fifth-wheel travel trailer. She stated that
there was no information provided with her trailer stating its cargo
carrying capacity (CCC). Ms. May believes that loading her vehicle with
cargo for a trip placed it in an overloaded condition, resulting in

[[Page 68443]]
The document is available in docket NHTSA-2005-22242-3. http://www.gpo.gov/fdsys/pkg/FR-2007-12-04/html/E7-22962.htm.

Interesting read and it explains how and why of the new reg.