K SERIES HELICAL SYNCHRO 3-4 GEARSET Instock

Replaceable engagement on 3rd and 4th gear so no need to buy a whole new gear if you damage the teeth For use with Type S or 06up Civic SI synchros. 1-2 triple cone and 3-4 dual WORK Must use 6spd 3-4 slider otherwise 4th gear will pop out.    ALL MOTOR RATIO 1.5/1.15   TURBO RATIO 1.35/1.0   CUSTOM RATIO 1 1.35/1.15 CUSTOM RATIO 2 1.5/1.0   800hp or less rated   We require assembly to be checked in a window case. That is a "cut top half case on 4 sides to see thru window, to make sure all lines up and engages fully and smoothly. Simulates a locked in top bearing and fully functioning gear set." Saves hassle and risk of doing damage putting it in the car blind.