Hi:
I changed the stock Front and Rear sway bar bushings for my 1998 Camry. My car had 17mm in the Front and 16 mm Back. I bought mine from:
http://www.suspension.com/toyota.htm
If you call them, they will ask the size of the bar. They are very knowledgable and parts fit perfect. Here are the part number for a 1998 Camry:
Front- 17mm- 9.5121G
Rear- 16mm- 8.5120G
I did notice a difference after installation. Greasable bushing are not available.
Hope this helps
TRD_Rob
PS: After installation, they do squeak for a couple of weeks. Once broken in, they are quiet.