Do yourself a favor and get a track bar that lasts. Try a Luke's Link or DT Track Bar or one from Lindstat's. These are adjustable for wear and should last the life of the truck. I have the Luke's link and it is a really slick setup and the front is really tight now. All of the others will do the same.
The bolt to the axle will be a tough one to get out as it is locktight'd on, atleast mine was and that was the hardest part of the process. Us a pickle fork to get the tie-rod end out of the frame, I didn't have one so I used a breaker bar against the frame and the track bar and it popped right out. If you pound it out from the top be carefull not to ruin the treads on the track bar if you plan on going with a Luke's Link that is.
Use locktight on the nut going back to axle and the track bar when you reinstall and torque all your nuts to specs, 130 ft lbs to the axle bolt and 70 ft lbs for the ball end.
An alignment is not required unless you need one anyway. Good luck.