Honestly, this is a 99 CA emmission Gen 2 body with 3.5 SOHC , AT, 4.36 rear open diff( and 4.36 front diff <img src="/forums/images/graemlins/lol.gif" alt="" />).
I posted about it last year and got some good explaination from some on here who know a wholelot more than I.
I think it's like when you could buy old oldtimy lookin Jeep pickup in 67 when they produced the Studebaker lookin one since like 63.

dave h.
'89 Raider V6 5spd;Aisin Hubs;; Gen2 LS: frt. brakes, rear coils;U.C.arms;R.trailing arms;idler arm; rear LSD axle w.disc brakes ;2 battery system for Dog's fan; relocated ECU; custom bumpers;J.Baker receiver;Conferr roofrack; t-bar crank.