i have a full final drive set up including countershaft, final drive (ring gear) and countershaft bearing. i swapped a K24 motor into an '02 civic si that is going to be turbocharged. The origional final drive setup for the civic was replaced with a setup from an '02 RSX-S. The final drive of an RSX-S is aprox. 4.3:1 and the Civic Si final drive is aprox. 4.7:1. The '02 si final drive set up is for sale. Im asking $300.00 or a reasonable offer. It can be used in an RSX-S 6spd transmission to lower total gear ratios for better acceleration. Please PM me if you are interested. Thanks, Joe.