Any recommendations for a clutch spring kit on a 06 rubicon 500? I noticed when I get into DEEP mud my engine rpms get kinda low , Even in low gear .(deep mud by my house is only @ 2 feet or so)and I know this is only a PUDDLE to some of you ! . Sometimes it worrys me because I dont think the tires are going to keep me spining . I know that EPI makes a HIGH STALL , a performance and a economy kit ,but I not sure which one to get. I already have 26inch MUDLITE XL's .I plan on adding a hmf ,K&N and a jet kit also. ANY other advice would be appreciated.