I just finished rebuilding the front end on my Justy 2 weeks ago. Last weekend I was out running around to the various flea mkts and while on the highway 70mph, the car started making a horrendous chatter and grinding noise. I backed it down to the legal minimum and limped it home. I put it up on jack stands expecting to find one of my newly remanufactured halfshafts to have failed, but everything was tight. So I locked and chocked the rear wheels and started the car. I put it in gear and couldn`t simulate the problem again. So I gingerly shifted through to 5th and looked again. I had a 2x4 against the torqueing side. Every once in a while I would get the same noise, but it was intermitent. From my frustration, I punched the tire:banghead: and lo behold the noise stayed constant. I shut the car off and was figuring the worse, like a bearing failure. I removed the tire and was going to repeat when I noticed shiny spots on the inside of the wheel. On closer view I found my noise-maker. In my haste to finish one side of my rebuild and start on the other side, I neglected to put the bolts back into the slide pins that hold the caliper on and the caliper had walked off the rotor enough to rub against the inside of the wheel. MECHANICAL STUPIDITY ERROR. Luckily it was an easy and cheap fix...