Jun 23, 2011 · Hello everyone my name is jeremy im pretty new to the site ive owned my 2000 TJ since 2007 did a little wheeling while i was stationed in Alaska i pcsd down to FL and found a few place to wheel but not many, anyways for the last year everytime ive put my jeep into 4 high it feels like theres thumping right under my gas pedal i figured it might be my u joints so i …