 The 1987 issue of the Mighty Dump appeared identical to its 1983 to 1986 predecessors. |
 The 1983-1986 Mighty Crane used steel for the boom and the clam opening mechanism. Most of the rear portion of the crane was steel. |
 In 1987, the boom, clam frame and major portions of the rear of the crane converted to plastic. Also note the steel rod now used to raise and lower the boom. |