jakeboyce33
Newbie
Hello everyone. I've got a '99 K2500 4X4 4 door with a 6.5ft bed. My truck has drums in the back and disc breaks up front. I replaced the rear drums last summer along with the U-Joints on the main drive shaft which is a 2 piece drive shaft. The truck shakes at 47-53mph and at 67-74mph. I also had Goodyear Ultra terrain tires put on in before winter. I've had them re-balanced and the rear end still shakes. Rims are stock size and still in good shape. Every once in a while while going 70mph it's as smooth as a babies bottom going down the road but the bounce eventually comes back. Wheels are tight, I've swapped the front tires to the rear on both sides, on the side it shakes the most I tried a different drum and it still bounced/shook. It's a solid rear axel back there. I'm not sure what else to try at this point? Any advice is appreciated, this is driving me nuts!