1646888: CLUTCH;PACK,REVERSE Gaskets model: Heli H2000 Series CPCD50～70 S6S model: Heli H2000 Series CPCD50～70 S6S Part#: Z 9 12571 801 1 47 MM) Restores like new performance to the clutch Critical to maintain proper stack height for optimal performance May include GPZ friction material outperforming OE materials by up to 20% Increases durability of the transmission Reduces core temperatures Increases torque capacity Improves clutch life **Additional Information**: Proper clutch clearance depends on friction and steel plate thickness Clearance can be adjusted using available selective snap rings Installation instructions are typically provided Made in the USA (for some manufacturers) This Reverse Clutch Pack is an essential component for enhancing the performance and durability of your 6R140W transmission