Another EXCELLENT choice is the bumper offered by Brian Bodine/Slapmaster tools. See his "site" at http://www.slapmastertools.com/ and you'll see a pic of the bumper at the bottom. His e-mail address is there too and he gets stuff out VERY quickly.

Get a thrust bearing assembly while you're at it. I've got bumpers and thrust assemblies on all three 3.2R's here.

Scottrik