AWD, worth it or not?

Thanks, didn't know rd4wd made 3 speeds, just saw 2 and the auto cvt. I just picked up a high lift but the mounts are different. I'm probably going to use spacers to lift the trans up as much as I can to get some more clearance. The 2 flanges on the bottom of the stock 3 speed that hold the case together sit right in front of the front axle input shaft. What are your thoughts on adding a small servo shift 2 speed hi low trans to get 6 speeds?