Here's some additional info:

http://chevy.oldcarmanualproject.com/shop/1955truck2/55ctsm0401.htm

Seal puller not mandatory, just be careful not to damage sealing surface. Pullers are inexpensive and you may be able to borrow one from your FLAPS. Put a little lube on seal lip and tap new ones into axle tube. As Dave says it's not that hard. Biggest/messiest task is getting the axles out. Check axle shaft surface that seal rides on for damage/pitting....love the smell of gear lube!

Last edited by Forty9; 09/25/2013 10:58 AM.

Ed