1996 GMC Jimmy, 4.3liter V6. Automatic

When accelerating I get what feels like the truck is missing [I think this is the transmission slipping], and it doesn't want the RPMs go over 2k [it kind of bouces around @ 2k]

Anyone have any experience with this problem? I'm going to call around to some shops this weekend. Just trying to an idea of what I'm looking at?

Any help would be great.

Thanks,
Greg