Rear Axle Swap

[colinlx]

Hi all, finally getting to do some more work on the truck this winter. I've looked around here but can't come up with the answer I'm looking for.

I've got a 3:73 posi rear axle out of a mid 80's chev truck that I'd like to throw into the '72. My '72 has coils, so the trailing arm perches should be easy to re-locate on the 3:73 axle. I'm having trouble figuring out what to do with the panhard or track bar. I'm not planning on lowering the truck, just going with the original stance. The guys at ECE tell me that their super track bar won't work for stock height. Anyone have any suggestions as to what I can do? I'm thinking I'll probably have to re-locate the panhard/track bar mounts to the 3:73 axle as well.