Track-Bar Questions

[PrimeredThunder]

For refrence I'm running a 72' Chevy SWB with trailing-arm suspension and no suspension notch on airbags...

My questions are regarding the tracking/panhard-bar. I havent swapped out my stock unit, so i'm getting some massive side-to-side axle movement in my suspension cycle. I want to know if I can modify my stock bar in the stock location to resolve this? I would think lengthening it to the appropriate length so my axle is centered at ride-height should solve the massive amount of travel? Or would a "Super Track-Bar Kit" from say ECE with the relocater brackets work best because the length of the bar? I'm trying to keep this as cost effective as i can, but then again, there are some things you shouldn't be a cheap-skate on...please shed your light on what i should do, any pictures of your track-bar setups would be great too for refrences. Sorry for rambling..i get a bit carred away at times

Kenny