77 inch premium roof.D12 Volvo engine, 465hp diesel, automatic OD, engine brake, air ride suspension, 3.420 ratio, 22.5 tire, all aluminum wheels, 12,500lb front axl. Brand new steer tire Michelin changed 8/17/15. Drive tire 22.5 ANTYRE changed 10/31/14 New power steering gear box changed 1/20/14. New king pin bushing replace changed 1/20/14 Brand new batteries. Brand new radiator changed 1/28/15 Brand new air compressor and water pump changed 1/19/15 Brand new front spring changed 5/16/15 Brand new air dryer changed 12/06/14 Brand new x-y shifter changed 8/23/14 I have so many changed parts that are too many to list, have all the maintenance documents and receipts. brand new exhaust system changed 8/15/15, synthetic oil changed 8/15/15