FOR USE WITH JWT CSC: Due to the many combinations of clutches, flywheels, & bellhousings, this hardware is a starter kit that includes nominal CSC spacers that may need modification based on your specific installation. You must space the CSC so that it is compressed by 13mm from fully extended when installed to avoid over extending and damaging the CSC during operation. Most typical clutches will fully release with 7.5 to 8 mm of CSC travel and will fully release properly by this 13mm setting with a safety margin.