AutoZone Timken part #5200...under $10.00 for both the seal and the tailshaft bushing. If the seal is leaking and the slip yoke has free play you can bet the bushing is wallowed out too and replacing the seal is just going to be a temporary fix.
Special tool is used to pull and reinstall the bushing with just the driveshaft/slip yoke removed, if the bushing is not totally destroyed. If it is it'll require pulling the tailshaft to fix it correctly.
Last edited by Fla54Chevy3100; 03/08/2011 10:44 PM. Reason: additional info