Location...Illinois. S/N...31017. National Crane model 671C, Unit ACC-1, 17 ton capacity, three section hydraulic boom, tip height 81 foot, "A" frame outriggers, A-frame rear stabiliziers, single front S.F.O stabiliziers for 360 degree stability, H.A.S. overload alert system, two speed winch, 2000 Sterling LT-7500, Caterpillar 3126 275hp with 860 ft/lb torque diesel engine, dual locking differentials, 20 foot deck, 182,403 miles & 14,757 hrs as of Dec 2010. Units available for rent or for sale. Call Frank Fitzgerald office (708)-447-3169 or cell (708)-601-2848. Runnion Equipment selling, buying, trading, boom trucks since 1963. www.runnionequipment.com