FYI, I found these bushings on ebay here:
http://cgi.ebay.com/ebaymotors/CONTR...24702850QQrdZ1
Please take note of the part numbers on the packages for future reference. If/when the link dies the GM part numbers are:
96308002 for the large through-hole bushing and 96492383 for the small through-hole bushing.
Having said that, I called three (non-Daewoo) GM dealers, none of whom could use that number. I only included them in case your local part store guys are slick about cross referencing. My local former Daewoo dealer only sells complete control arms, of course.