The 3in was bought off of ebay two of my co workers got them they paid less than 300. they also did it to have a little more clearance to get out to there hunting spots
Buddy of mine did pro comp 3 in. The kit he got came with transfer case drop spacers he stuffed 33 with 20's light trimming. He's happy with that set up..
Certain lifts require different rim size once you get up into the 6" check with the manufacture of lift pro comp requires min 18" rim to clear steering knuckle