brother in CJ-5, 2L-T some how works fine but in CJ-7 n wranglers 3L,3B n 1KZ-TE works outstanding if u go for some serious type offroading. those who r not seriuos type offroaders even put 1C or 2C in their rigs. for M series 2L n 2L-T is the best choice comparing with power to weight ratio. no match. i am not criticising ur 3C's performance but just telling u that 2L-T is best for any M series. its my personal experience n opinion so plz don't mind.