If you want good dodge advice, try: http://dodgetruckworld.com
They're pretty helpful there.
I bought a 96 Ram 1500 this year, with same motor in it and my tranny's been slippin but it got really worse after a mud hole back in july. Saving up for a rebuild/new tranny. Did you price any out yet?
Back in July/August, I priced them at different places (junkyards/tranny shops and online) cheapest I found was $600 rebuilt (if you're lucky to find one and return your core? but you might have to pay $100+ shipping if found online) found them up to $900 for rebuilds, or $1,300+ if you go with new tranny instead.
If I had the money, I'd buy a new tranny built stronger for mudding. But just like everyone else, I'm broke HAHA
Good luck with it.