Are you looking to do something specific with the trnas...I can give all inds of info on the mopar swaps and how to do them without adapters...using ALL factory stuff. the 999 and the 904 are similar and the 727 is stronger and yes, has a bulge on it.
EC4WDA sand/mud racer slant six/NOS/20.5" wide sand paddle tires
2004 KJ...the wife has to drive something
1979 CJ7: 4" springs, 2.5 shackles, 35 procomp M/Ts, 360 auto, quadratrac, rear discs, ramsey winch, lock right, overall good time...