Offers increased clutch capacity. Reduces clutch slippage and resultant heat build-up under heavy use.
STAGE III FOR 98 cu. in.: The spring rate is about 7% stiffer than the stock spring for 98 cu. in. engine to handle the increased power output from Stage III configuration.
STAGE IV FOR 98 & 102 cu. in.: The spring rate is about 25% stiffer than the stock spring to handle the increased power output from Stage IV configuration.
