Synchrotech Mfactory Honda Acura 4.92 ratio Final Drive Gear set - USDM GSR ITR B18C with case ID S80 Y80 (10 bolt 116.8mm ring gear hole)

Description

Included in this set: 4.92-1 Ring gear and Countershaft that are a direct replacement for the OEM Set. This kit has everything you need to upgrade your USDM B18C Hydro to the Hi Performance 4.92-1 ratio. Changing your final drive to a performance ratio will increase RPM and provide better acceleration. Fitting: B series Hydro Transmissions with the 116 MM diameter ring gear hole. Please let us know if you have any questions regarding fitment for your transmission and we will be happy to help you.