I hope this is the right forum to post this question and if not, please let me know. I have a 2010 silverado 1500 4wd and my dealer claims I have bad ball joints, both upper and lower. In searching this site and the internet I can find really good directions for the upper control arm/ball joint assembly removal and installation but not much on the lower ball joints. In the Chilton repair manual they claim you need to remove the lower control arm to replace the ball joints, which supposedly requires taking off the front driveaxle. The ball joints in there now are factory original , but has anyone replaced these without removing the control arm? If anyone has any suggestions I'd sure appreciate hearing about them. Thanks!!