David R.,
I have the taller and larger single hoop track bar for the driver side only. It is a bit of a pain to install in that you must line up the holes from the existing rollbar to secure the new bar in place. I drilled my new holes (only two into the frame supports) a little larger and used a washers on both ends of the bolts. This allowed for some error.
I replaced the track bar with the original yesterday for street use, and it took me all of about 15 minutes to do the switch. Just three bolts(including the rear angled one)! Only problem I found was the rubber gromets at the holes in the body expanded because of the larger size of the new bar being in place for two weeks. Hopefully they will return to their original shape.
My guess is it should take me about 15 minutes the next time I need to do the switch back for the track bar.
I hope this helps those of you with this problem.
TL
