Panhard verses diagonal track bar

[3100 special]

To set the stage:
54 Chevy panel truck
Complete IFS installed
Ford 9 inch ready to install
TCI 4-link suspension kit w/ coil over shocks received. See here:
http://www.classicperform.com/Store...ks/4754RSKP.htm
Power plant will be a V8 (roughly 450HP to give an idea of the torque being applied)

The 4-link kit was to have come with a pan hard bar. In it's place, I received a diagonal track bar.

I know the difference in how they are installed but, I don't truly know what one over the other will mean to my ride. I'm not looking to take the panel to the strip (often) but...I will play occasionally. Meaning...I WILL put power to the rear every so often.

I've read several posts by a few folks that definitely know their suspensions and cause and effect. Looking for some educated answers.

Thanks in advance!
Jon