For a friend who is replacing the 14mm bolt and changing it to the 9/16. Question is do we need to jack it up to take the track bar off or just do it with weight on it? Don't want to get teeth knocked out.

 

You should not have to Jack up. J replaced all lower control arm bolts and track bar bolts on the ground

 

No problem doing it 1 at a time on the ground. Only thing you might need is someone to move the steering wheel back and forth to line up bolt holes.

 

Use pneumatic tools. I did it with hand tools and it F**KING sucked!!! The torque on everything is 125 ft/lbs

 

You're good on the ground. Just need a buddy to turn the sterring to line up the front bar and push on the rear quarter panel to catch the rear swaybar. Just did this upgrade myself a few months ago. Make sure you use grade 8 hardward and stover nuts to lock things down.