just brought home a 2006 f150 4x4 KR screw Test drove ect, purchased. Then a bad piece of road, PAVED but awful made me want to turn around and take this truck back.Stopped looked over then carried on home and it was a pleasure to drive. After arriving in home town I let my son drive (yes i tagged along) and the same thing happened as earlier. To the best i can discirbe the rear wheels maybe all 4 felt out of balance or the 4x4 started to torque up like in a sharp turn on pavement. Did a few of the best efforts like checking for snow or mud in wheels E brake on, in or out of 4 by, all seemed normal drove again a short time latter everything was great. The rear end dose have a whine at some pionts under light throttle which i plan to have looked at on Monday, but never have I experienced the hoping, bouncy rear end in any other vehicle over the decades I have driven Any ideas or similar experience. truck has 120000km, limited slip rearend but is in awsome shape overall
Thank you for any ideas or such