1st ,I would bang on it.

I had to get the right puller. A big black OTC from Taylor rental. 2 6 in. jaws with bolts between to keep from popping off. Tighten it a bit , soak with P-blaster, tighten a little more, let it sit under tension for an hour or two, tighten some more. If you realy have to , tap here a there with a small ball pien. A PITA , patients, and good luck.

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.