Absolutely do no take the track bar off. That can literally be catastrophic. Mine came undone due to a striped bolt and it was terrifying. No useful steering to speak of. And it should be addressed quickly. Longer bumpstops would be a good temporary fix until you can figure out what is causing it to bind on the diff.
1998 TJ, 2.5" OME springs, OME N66 & N67 Sport Nitro Shocks, 33x12.5 Goodyear MTR's, Metalcloak front trackbar, JKS rear trackbar, Metalcloak aluminum front arched fenders, Metalcloak aluminum front bumper, thedirtworx tire carrier, Warn xd9000i w/ synthetic line and TRE Safety Thimble II, Monstalined interior