Computer diagnostics available. I replace waterpumps, radiators ,fuel pumps, brakes from tractor, and fix mirrors, lights, doors from truck ,and door hidges, Turbos, leaks, radiators, batteries, seals, wipers, air conditioning, brakes, air brakes, filters, hoses, belts, oil coolers,STARTERS, grease Truck, fix lights , fix lock doors fix holes on trailer adjust transmission clutch slide, sluck adjuster, fifth wheel , replace transmission, air bags, air coolers. and much more.