Ok so I am getting more and more into this offroading thing.  After 18 years of my sidekick being stock I decided to add a 2" spacer lift and 225/75 - 15 Toyo A/Ts. 
I got the tires first because I really didn't have any plans for lifting it untill I realized I really needed the extra ground clearance for many of the new trails I was exploring.
Now my tires seam to be a weak link.  They aren't that great in the mud, though they are better than the worn out stock size tires i had before.  Plus they look a little small with the lift.

How much difference would a 30" mud terrain tire make?  Will they fit fine with a 2" lift? 
Has anyone here made a similar transition?  How did you like it?

I have gotten stuck a couple of times in some mudholes where I was almost able to work my way out but the tires just wouldn't quite dig enough.  I'm thinking 30" muddders would've pulled me right through.

do you have a locker in the rear diff?  if not, i'd suggest you get one.  makes the world of a difference.

Project Trouble ran 30x9.5 tires with no lift on stock tires.  They rubbed a bit at the top of the fender but worked fine.  With a 2" lift you should be ok.

Flatlander makes a good point though, a locker in the rear will do you wonders in these little rigs.

Thanks Drone, I am thinking about adding a lockrite locker in the rear but I'm just a little worried about it being good for a daily driver.

As for the sidekick, I am really liking this little truck for offroading.  It does pretty good as is but I bet with a rear locker and some 30" mud tires it would really be sweet!

I ran 235/75/15 mud retreads from Treadwright on my old Tracker.  They were cheap and worked great.  I had no issues with them.