1987 Kenworth T600 Z 40 Zach lift 3 stage underlift .(Manual 3rd Stage,Pull and reset ext.cyl pin) This truck was originally built(by the origional owner) as a single frame the wheelbase is 316 inches.(it should have been doubled) The frame is beginning to bow a bit in the midsection and should be doubled.The truck was used in this condition until I retired it in 2018. Mechanically the truck runs and drives as it should.The sale includes all Zach lift frame forks, two half-inch chains, load binders, airlines and safety chains ,electric line and light bar. Caterpillar B modelmechanical injected engine 15 speed Eaton transmission with splitter on the lower side. Three stage jake brake differential locking axle.The front drive axle is on an adjustable regulator/dump valve to lower air ride pressure to gain steer axle weight when towing heavy. The rear drive axle has a 3rd center bag installed to effectively increase the air ride suspension capability, bring it into the 21,000 pound weight capacity for towed vehicles . After 21 years I am retiring from the heavy duty end of the business. I feel this truck will be a good starter truck or addition to an existing fleet. It is highly capable and well worth the asking price for the Zach lift alone. I encourage you to come out and inspect his truck in person l. If you should bid on the truck and win, and you inspect it and do not like it you do not have to complete the transaction. However, The $500 paypal deposit will not be refunded. This truck can be driven anywhere in the country, just bring a plate.This Z40 Zacklift is a STRONG unit. It will not stall. The front wheels of the wrecker will lift long before the Zack reaches it"s limits,Please do not bid if you cannot complete this transaction properly.