I've done 3 2" BL and have only had to massage once for the Transfer Case shifting, on one of them. It was preventing it from STAYING in 4WD. When I did the lift and drove it around the neighborhood, it stayed in 4LO just fine. But when I got out playing on the trail, you had to hold it once you started bouncing around.

89 SWB, V-6 5SPD, OME Shocks, 16.5X37's, 2"BL, SR axle, Gen2 brakes, Lincoln w/Superwinch