I actually tried it in AZJOL'NERUB (EDITED name 72-74 instance) (cant remember the northrend instance name exactly, my apologies) in basically a PUG. I let them know first I had never been in the instance and I was ret for leveling. Plus it had been awhile since I tanked. It was bumpy at first due to lack of an attack plan. But once I took over and understood the fight and got in a groove, it went pretty flawlessly. I was in mostly quest greens/blues and a couple of epics left over from 70 - merciless gladiator gloves and the furious goggles. Did have a few good tank items left from 70, but didnt bother grabbing them from the bank.
The lack of stam/avoid/mitigation is noticeable and can be tough, but the fact I can insta heal myself and judge seal of light as well as using seal of light along with some divine storm healing, it turned out to be not so bad....little hairy here and there where I threw up a lay on hands out of reaction, but that was more in the beginning. Hell I even helped the healer out by throwing a couple heals up on others, which also helps with threat.
Basically, yes I guess is what I am trying to say. It wont be perfect, and I would let your group know, but regular leveling instances are designed by blizzard to be tankable in most specs for the tank classes. I just had sword and board, and RF up. Aggro is a non-issue and I had two unholy DKs in my group. Just spammed RD when it was up to make sure none were pulled off me.
The healer was a level 70 druid, so below the instance. I checked her armory recently and she respecs alot, so I do not think she even had optimal gear for healing, but really went fine. Most of it ended up being aoe'd, the DKs helped. BUt anytime I could to be safe I would repent something. Found out the first boss with the groups of three adds before them, the primary middle add cannot be CCd, which led to a wipe, but the ones in the back, smaller ones could and once I found that out, and pulled them back to the crowd we did it in pretty record time, beating the time of the boss from the adds.
Irony is my guildy, only one I knew, told me after, that out of five tries inthe instance and dying 10-12 times causing most people to leave, this was the first time he even got passed the first boss and actually finished the instance. :D
This is for 70 and up instances, but basically illustrates that outlands would be the same. Actually due to increase in our spellpower, threat generation and damage output, outlands instances should really be much simpler in my opinion.
Obviously, as previous posters mentioned, this does not include heroics, etc...but regular should be just fine. Doesnt hurt to have a tanking set you can swap if needed, would probably help tremendously. ALso I only have 5 in strength in protection everything else is in ret.
Edited, Nov 26th 2008 12:48pm by spicyoctopusroll