Changed the front prop, front UJ today. Been getting the old grrrrrr noise on over run at higher speeds. Sounds like something is going to burst through the floor. Meh, lived with it til now. Thought it had gone when I put some actual bearings in the front diff, but it's back. With the lift on mine, the slip joint is extended further by a couple of inches. This means there is less connection surface area and of course more potential for side to side play. I had a spare prop kicking about of something else so picked the best bits and rebuilt the front end. There was detectable play in the UJ. Slight but how do you measure 0.005mm easily? I couldn't be bothered to try and dial it up. I just bashed it apart and put the OEM spare spider and bearings in. Lovely. No play, very smooth. Popped it back on and tried to go for a spin. Too much traffic to get up to speed and let off. But early indications are good. I might put the prop spacer back on to just push the slip joint together a bit to reduce any whip. Then we'll see. I want a quiet life!