My tow rig/ wifes daily driver is a 2011 Suburban 2500. 7" lift, 325/50R22 tires, 6.0 Whipple supercharged, 6L90E Trans. It has been having a vibration on the freeway, when you let off the throttle it sounds like you are running over a rumble strip for about 2 seconds. then goes away. Doesn't happen anywhere else. I rebuilt the rear axle in October 2020 with new Yukon gears and install set. changed oil at 500 miles. Has probably 2000 miles now. Old set has went bad due to possible bad setup(but had 130k on them) rear driveshaft got new Spicer U-joints.
Last weekend I replaced the Transfer case as the old one was clattering pretty bad. Rebuilt front driveshaft in the process. Re installed everything, nothing changed. I am at a loss as to this damn sound.
thanks.
Last weekend I replaced the Transfer case as the old one was clattering pretty bad. Rebuilt front driveshaft in the process. Re installed everything, nothing changed. I am at a loss as to this damn sound.
thanks.