I Grossed 25,120 lbs today
Today, I pulled a trailer that put me at 25,120.
The weights were : 4740 front axle, 4180, drive axle, 16200 trailer axles. CAT scale tix to verify is available.
I have now experienced the problem with SPS66 surging. It did it one time while accelerating from about 50 in 6th gear. It was a fairly steep hill. Boost wouldn't get over 10 psi, and rpms were at about 1450-1500.
I bought the Prodigy brake controller from Colrain RV for $95. 00. They were very pleasant to deal with. The Prodigy works great.
Not the heaviest load, but the longest haul. The heaviest was about 40,000lb load - a 1998 Mack tractor and trailer.