How much of a shackle lift should I go with? Can't afford to do a whole new lift and my rear shackles are bent. Just don't know how long they should be to match my 3" lift.  

The most Ive seen is 1 1/2" tall. so you could get those and maybe a 2" block to level it out.  

Ok, cool becouse I've seen 1 1/2 and 2. Wasn't sure how much to go with. Any suggestion on the brand?  

I wouldn't get to carried away with the longest shackles ya can get, they can bend and flip over.

just don't get cheap ones.

http://www.quadratec.com/jeep_knowledgebase/article-93.htm  

I have a set of 1 inch lift Confer shackles on my yj. They are realy strong.  

So on my search I found some 1 3/8, 1 1/2, and half inch, plus some bigger sizes. Should I go with the 1 1/2 kiethpappa suggested or smaller?  

they are only a 1/8" in difference, i'd get which ever ones are stronger...  

I found a set I just orderd from BJ's and they were 1"ers for my Cherokee that will hopefully be here friday or monday.  

Thank you gentlemen. They will be on order tonight. Whichever way I decide to go.  

I got my shackles today from BJ's and theyre a pretty stout set! gonna put them on this weekend!