I don't have a GMC or a GMC manual but isn't it the same as the Chevy steering wheel????? Simply use a steering wheel puller on it like you're supposed to.
You're probably looking at the mast jacket bearing puller. Yes that puller is a tapered piece that has hardened threads on its outside, (kind of looks like a great big tapered pipe tap) and is screwed into the bearing shell then the center bolt is used to pull it out of the mast jacket.
Please, no need for hammers here, try leverage, remember this old saying; “Give me a place to stand and with a lever I will move the whole world.”
Denny Graham
Sandwich, IL
Last edited by Denny Graham; 01/10/2010 3:05 PM.