new cm truck beds model sk 8'6" / 84" / 56'' / 42" sk 8'6 long x 84" wide x 56" cab to axle x 42" wide rails fits long wheel base single wheel truck that had an 8' bed on it 4" channel frame rails 3" channel crossmembers solid one piece rear skirt w/ step and led lights 1/8" steel tread plate floor 2 right and 2 left tool boxes 18 500# b&w rear receiver tube hitch and 30 000# b&w gn hitch w/ welded ball in recessed box & 7-way rv plug in gn box tubular steel headache rack w/ led lights rv plug and 4 flat in rear skirt. 1259# shipping weight s/n kc00313995