Hydraulic Clutch, Diagnostics and Repair, Hydraulic Brake Diagnostics and Repair, Basic Driveline Repairs, Basic Cab and Chassis Electrical, Transmission Remove and Replace, Differential - Remove and Replace, Spring Suspension Repair, Exhaust System, 609 Certification, Diagnostics and Repair Air Sys., Air Leak Diagnostics and Repair, Clutch Diagnostics and Replacement, Charging and Starting Systems, A/C System, Cooling System Diagnostics and Repair, Basic Electronics, Air Valves, Driveline Replacement, Set Valve Lash. Diagnoses and repairs various truck systems using hand tools such as screwdrivers, pliers, wrenches, pressure gauges, and precision instruments, as well as power tools such as pneumatic wrenches, welding equipment, and jacks and hoists.