Sad to say but I don't have air tools (yet). So I bought a $50 electric impact wrench from the local tool place. That thing works great. I am swapping FJ60 knuckles, hubs, brakes and longfields onto the front of my FJ40. I was able to get down to bare axle housing in about 90 minutes including pulling the birfields off the inner axles and fitting the longfileds. What am I missing? Are there drawbacks to the electric impact wrench? The max torque is lower than air (250 vs. 400) but very impressive performance for the price. Any input appreciated, but it's making me think I can delay the compressor purchase. What do the experts say?