OS Giken clutches are made to very tight tolerances and is the reason why we offer separately forged billet center alignment tools to eliminate the slack found commonly from plastic center alignment tools. These tools imitate the transmission input shaft to provide tight fitment to the pilot bushing/bearing to prevent sag often found installing multi-plate clutches. This is very important as misaligned clutch plates can lead to difficult re-installation of the transmission. Transmission hangup can create leverage on the clutch plates which in turn leads to warped discs (misinstall).
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