Pettibone All Terrain Crane. 1969 Pettibone model 25. A 15 ton lift machine with a rebuilt 453 Detroit diesel engine. Four wheel drive with Crab steering. The boom is three stage with a 60 foot reach and single line double block 10 inch sheave. The base operating weight is 38’400 lb and has a GVWR weight of 43’000 lbs. New rough terrain tires all around.