The harness model yrs seem to run from 78-85. I don't know what the differences will be, but I have read many post voicing concerns with the quality of the pre Mopar era harness. I would suggest if your going to invest the time, find either an aftermarket modern harness, or a post 85.
"I like fun" Edd
Clawed: 90GW, TFI, Streetfire, 3"lift all spring, 31"BFG ATs, working RKE, Edel2131, Holly 1850, mild cam,
05 Renegade OME 927, 947, top plate, JBA 4.5s
"Just Jeepin it real"