Greg is absolutely right on NOT using talcum powder on torsion bar bushings. This was the recommended 'lubricant' in the VW service manuals and it absolutely sucks. The Germans must have had a totally different baby powder back then (more cornstarch? LESS cornstarch?? - Dunno) but then, I remember hearing more than a few Beetles squeaking around when I was a kid (and 90% of them had squeaking generator bearings, too!!)
The last time I did a car (this past Summer), I lubed them up liberally with CV joint grease and put them together and the result was night and day - no squeaks or anything and they were super-smooth in action.
I've also corrected my article, now using CV joint grease and cautioning against using talc. I used NAPA stuff, but any CV grease with lots of teflon or molybdenum should work well and last for years.
gn