Cookie Monster: Read what posts I could find of yours on the clunking noise on the Mules -- very informative. My kids were at the beach 2 days before me. one tire punctured on 2009 4010 Mule and they put a smaller tire spare on rear driver's side. after driving for a bit over a day it started the clunking, popping sound emanating from the front axle area. the 4x4 cable was noticeably looser. I arrived, changed out the tire, tightened 4x4 cable, filled rear tires to 16#, front at 8#. It helped, but still makes a slight clunk every 5 feet or so forward 2WD. Does same in 4WD. Then after traveling 50 yards or so, a loud hard clunk that has a lot of resistance before it clunks, enough to almost stop the Mule before it gives. When backing up, pop is really loud. Never had any pop/clunk issue at all before this. Is there anything else I can do at this point to salvage for rest of beach trip and then get full fix when we get back? Thank you!