ah64id wrote:
As I mentioned, brakes are designed for GVWR+ the 2,000lb trailer than you can tow without brakes.
Please quote your authority for that statement. I find no such requirement in
FMVSS 105, which is the brake test standard that all vehicles must be certified to meet.
Your statement sort of contradicts:
"S6.1.1 Other than tests specified at lightly loaded vehicle weight in S7.5(a), S7.7, S7.8, and S7.9, the vehicle is loaded to its GVWR such that the weight on each axle as measured at the tire-ground interface is in proportion to its GAWR, except that each fuel tank is filled to any level from 100 percent of capacity (corresponding to full GVWR) to 75 percent."