DESCRIPTION 1998 Fontaine TB50NGB Lowboy Trailer (GP11825, Unit 649-50), 1998 Fontaine Model TB50NGB lowboy trailer, triple axle, spring suspension, approx. 24' well, GVWR 116,000 pounds, Wisconsin gas pony motor, 255/70R22.5 tires. Serial Number: 4LF4S4936W3506476 Notes: