MFactory's 4.71 Final Drive Gear Set (B18C ITR GSR) is designed to fit specific B series Hydro Transmissions with the 116.8mm Large diameter ring gear hole. This gear set is suitable for 1994-2001 Integra GSR models and 1996-2001 Integra Type R models. With a 4.71 gearing ratio, you'll get more torque and acceleration with every shift.