Hey there Slick,
Glad to see you're getting the bug for wheeling! When I get some down time at Christmas I'll probably try to start a thread about 'wheeling with the Raptor'. I have been out a few times, and plan on doing a whole lot more with the club I just joined up here. Like your situation, its mostly jeeps, LC's and a few yoda's. This makes it a challenge following a tour in a full size truck that's a helluva lot wider than most...
First disclaimer - always go out with at least one other vehicle - never wheel alone. Aside from the safety aspect, if something were to happen (stuck/break) its often a long trip back to civilization.
The short reply to your questions, from my experience so far:
- rock crawling: The engine, gearing and low range mode of this truck would make it a good contender for climbing and crawling through rocky obstacles. As Warrior mentioned, the longer wheelbase is a disadvantage as you can get hung up on stupid little things that don't affect smaller trucks. Secondly, the independent front suspension on this truck is not a feature commonly used for rock crawling. While it will work great in some situations, most rock crawlers use a solid axle setup in the front (to allow a front locking differential). That being said, I have played in non-extreme situations a bit and found the truck to perform really well - the only complaint I have is the rear departure as I keep slamming my trailer hitch! (But the hitch is there more for protection than for towing
)
- Mudding: Raptors work alright in mud but I've found that as aggressive the stock tires are, they are not suited for the 7000lb weight of the truck. I've yet to get her stuck, but have had some close calls in some mud holes (not necessarily a bad thing - its fun!). The type of mud makes a difference too, loose silty topsoil/sand is not a problem for these tires. Sticky clay is another story, as it packs between the treads until you hit about 5500 rpm in 3rd gear... However if you are out playing with trucks with few modifications and similar sized tires - you should be able to keep up without a problem.
- Wading: With the nice tall stance - fording a 30" deep riverbed is alright but I wouldn't spend all day in there! Trick is to go slow, and if you have to stop, be prepared for the wake behind you to come up inside the engine compartment and make a mess. I've been deep enough in a wet mudhole to cover the front headlights and the resulting action with the fans/wake left me with a 3 hour cleaning project after the run.
In short - the Raptor is an excellent off roader that will out-perform pretty much any other stock truck out there, not to mention some modified ones. As Bird said - short wheelbase and long suspension travel will allow you to go more places than most. The key is to take it out and play with it to find your comfort level and explore the limits of the machine. I've been wheeling for years and am still learning new things about this rig!