K SERIES STRAIGHT CUT SYNCHRO 1-4 GEARSET

BF Gears Usa K Series Straight Cut Synchro Set Heavy duty input shaft no step down. Extra spline length for twin and triple disc clutches. Replaceable engagement rings on 3rd and 4th gear. Ratios: 2.7 1.69 1.23 .95 Stock sized gears so you can still use stock 5th and 6th gears. Must use 6spd 3-4 slider or 4th gear will pop out!! MUST SHAVE REVERSE FORK TO CLEAR 1ST GEAR MUST BE WINDOW CASED AND SHIMMED 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.   Suggested for 1000hp and under. For use with Type s or 06 up civic si style synchros. Triple cone 1-2 and dual cone 3-4