I need some clarifacation and refreshing on front pumkin swaps,,,,,

I understand the Gen 1 v6 front pumpkin has a bigger gear than the Gen 2 3.0s.

I guessing a gen 2 pumpkin will fit into a gen 1,,,???????

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.