DESCRIPTION 2012 Manac Extendable Flatbed Trailer (GP12124, Unit 10040), 2012 Manac Model 12353A020 extendable flatbed trailer, extends to approx. 90', wood deck, triple axle, air ride suspension, Holland landing gear, 11R22.5 tires, GVWR 100,002 lbs. Serial Number: 2M5131615C1130140 Notes: