My company has done magnum swaps in Jeeps since 1998 and we have done several CJ's with 3.9's, both At and MT. The A-833 would require a zero balance flywheel with reluctor ring which we have. The 3.9 is a "cut down" 5.2 so performance parts from 5.2 wil work and we can grind a custom roller at .520" 215 @ .050 that will wake it up nicely. V8 throttle body, pcm flash and you should hit the 250 HP mark. We build harnesses for them as well The wagon looks cool except the guy didnt ditch the PDC(black lunch box on fender) and didnt put pcm under dash like we do it. This is a much cleaner look IMO(with exception of old wires I havent removed yet..
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