Hi everyone! I'm a newer member. I've had a few Jeep's (cjs, yj, xj, commander, and a jk) but I've never owned a tj. I have a 2005 lj with 21k miles. It has 3.73 gears and 33 10 1/2's. I'm shifting around 2000. Should I get the revs up a bit? She seems ok, but I want to make sure she stays...