MYFLEXCARE SERVICE DIESEL TIRES: 225/70R19.5G ALL POSITION (STD) TRANSMISSION: 8-SPEED TORQUEFLITE HD AUTOMATIC (DFM) TRAILER BRAKE CONTROL -inc: Trailer Light Check MANUAL DPF REGENERATION WHEELS: 19.5 X 6.0 BLACK PAINTED STEEL (STD) DIESEL GRAY/BLACK