For 4t65e automatic transmission stage 1 performance Red Clutches 1997 2002Stage 1 is truly a performance friction. Its not only a racing clutch but can cross over to the heavy duty market with a high mileage durability. It is an economical performance solution offering greater holding capacity durability and less wear than other red performance friction plates. Good up to 550 HP. Raybestos lists these up to 2002 because some 2003 input clutch fwd clutch went to ratchet mechanical diode so the inner teeth are different. If you are not running ratchet mechanical diode for input fwd then you can use these clutches for all years.