monday i am getting my jeep back with a 3 inch rc lift and i was wandering if i will need to get a new track bar or will the stock one be fine

 

your axle will be off center,you can get an adj.tb or for free you can re-drill and move your stock one

 

You WILL NEED to address the tracking issue with either an adjustable trackbar.
-OR-
Redrilling the mounting hole, like Seed said.

There is a technical article about redrilling for trackbar in the TECH articles section.
Keep in mind: This is inexpensive (real cheap) and effective ONLY IF- you do not plan to go any higher.

There are tons of adjustable trackbars on the market.
All having thier pros and cons.

I believe there has been several posts concerning different trackbars with just about everyone stating thier personal favorites. A quick search will unearth these posts.

Most trackbars range from $150-$260 depending on manufacturer and amount of lift range.

 

personally i just redrilled and it worked well and didnt cost anything

 

If you don't do any extreme offroading then redrill the axle mount. If you plan to do any real offroading you should replace it with one that flexes more then the stock.

 

superlift makes a decent unit and its priced well its available from summit