THe gen 2 oil pan is a little different , you may have to use the gen 2 oil pan. I think a gen 2 pan will go in a Gen 1 but not sure the other way cause of the High pinion gen 2 diff.

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.