Tried a search and this is killing me. I put a camper on my truck and after about a week I notice a big wobble (feels like the front end is out of alignment or something is not balanced) when I accelerate from about 50 through 80mph. It is very noticeable with the Juice turned up anything above 3x3 to 5x5. It happens when the engine is under load and in a higher gear (not downshifting) like when it is pulling a lot of torque but not high rpms. I took the camper off and now the truck is light but still does it just not as pronounced. The camper guys put my truck into 4x4 and I had to show them the switch for the 2-LO setup. They turned off the switch but didn't shift the transfer case out of 4HI. I drove it that way for awhile before noticing it. Did that mess up the front left u-joint or something? Wobble/noise seems to be coming from the front left side. I have new ball joints and wheel hub assembly but not new u-joints up front....