text: what is the final drive gear ratio in a 2000 acura integra? ring and pinion and 5th gear at the transmission.what is it in the 1991 acura integra. thanks. final drive for a 2000 is 4.4:1....this is on the type r heres some info  so how do we make a car that has a motor putting out such weak torque faster? that's when gears come in. gears will multiply the torque by certain factors depending on their size/teeth count. take a gs-r in first gear (3.23), when the motor spins 3.23 times, the driveshaft will turn once. and for every 4.4 turns of the driveshaft, the differential (final drive, 4.4) will turn once. that is directly connected to the axles which turn the wheels. you can simply multiply 3.23*4.4 to get an absolute gear ratio of 14.212:1. this means for every 14.212 turns of the motor the wheels will turn once. so if the motor gets to turn 14.212 times in order to only turn the wheels once, the amount of torque the motor is applying to the wheels gets multiplied that many times.  if you were also asking for the 91 i dont have that info