Old post but useful. Watched some of these 0-60 vids and really envious. Recent tuneup, fixed brake line drag, new brakes, runs well but groggy somehow above 50. I'm nowhere near 7 seconds on 0-60.
It's a 4L 4x4 Step Side.. I think I could recognize a transmission issue. It shifts well. Could a transfer case drain acceleration? (I've got 4x4 issues for sure) Where might I look next?