I replaced the shocks on my truck yesterday and had a peculiar problem that I wonder if anyone else has experienced. I had watched a youtube video on the procedure and it looked pretty straight forward and I had loan of my brother's shop and his tools, so I was pretty well prepared for the task. I do think I waited a little too long to replace them even though the truck wasn't bouncing after a bump because I still had the original shocks at 238k miles. Would that be a record? But, to the problem. I worked on the rear shocks first because I thought they would be the easiest, and they weren't too bad. In the course of rolling under and back out on a creeper, I started getting nauseated. I had the same problem 10 years ago doing about the same work. I would take small breaks, get up and walk around a while, go outside, get a drink of water, chew some gum, and all that didn't work. I barely got out from under the truck and outside before I puked! I never have car sickness, or motion sickness, but I think that what I experienced is a form of those. I wear prescription glasses, trifocals now and bifocals 10 years ago. I couldn't see well enough to do the work without them. My brother returned from running errands and helped with the fronts and they turned out easier than the rears, with more work under the hood than laying on a creeper under the truck. I put Bilstein 5100's on and the drive back home was better, but the real test when I drive down the dirt oilfield roads that I travel 5-6 days a week. They have to be better than what I had.