there was a thread on JU about how it is pretty much a direct swap for JK lights into a TJ - all that was needed to make it work was acquire the different pigtail coming from the TJ's harness that would plug into the JK light assembly. if you find a JK in a yard it would be easy to grab them; any other method would be nonexistant since the pigtail permanently a part of the whole JK lighting harness. clear as mud?
Mine - '03 TJ RE4.5 coils, long arms, 4.88 gears, arb/detroit, 35" BFG KM2's, 9.5ti, skids, etc.
Hers - '01 TJ RE4.5 coils, 35" BFG's, Hs9500, HP30/8.8, 4.56 gears, skids, etc.