It's great to ask questions, I would say they are the main reason for a forum like this. That being said, try a search here, Google, and also jeepsunlimited.com is a good place. This has been discussed many, many times, and the web has several articles on it.
I will be doing this swao towards the end of the summer.
'82 Scrambler - NV4500/4.5" lift/33" Toyo MTs/4.0/twin stick, and my windshield washers work! Full 1/2 cab Cage
2004 Grand Limited 4.7 HO - OH Boy!
2010 Grand Laredo 5.7 Hemi - SICK - work vehicle -gone - replaced by an 08 Tahoe - nice ride.
"Both my Doberman and my Jeep can accurately be described as 'black and rust.'"
"I got a fever . . . and the only prescription is more cowbell"