20' x 8' dump trailer axles 2 - 10 000 lb general duty oil bath battery/charger group 27 series deep cycle battery w/110v 5amp charger coupler 30 000 lb bulldog bx1 floor 3/16" / 7 gauge cross-members 3" channel on 16" centers frame main frame - 12" x 19 lb i-beam w/bridge dump body - 6" channel gate double doors hydraulic systems 6" x 28" scissor lift power up power down electric power unit jack 2 - 12 000 lb drop-leg jacks neck 12" x 19 lb i-beam w/pump box sides 10ga x 44" tires st235/80r16 radial dually 90" slide-in ramps 37" deck height upgrades long-arm tarp system cordless remote grain door crossmembers 12" on center