[V8] replacement driveshaft

[Keith Rollinson]

Recently had some service performed on my 1990 v8 (thanks again, Jeremy,
for the Matrix tip - they're great!) and the chirping noise I've been
hearing under low acceleration is the driveshaft, which needs
replacement. The garage quoted $1,300+ for a new one (even though Audi
does not show one being in the US); I did a web search and found
reconditioned driveshafts at around $400 + core. Does anyone have any
experience w/ rebuilt drive shafts/any recommendations for purchase?

Most appreciated,

Keith