What's the Difference?
 

http://www.drivetrain.com/parts_cata...rhaul_kit.html

If you scroll down to the overhaul kits, there are two kits but what is the difference between the roller rear counter bearing and the closed roller rear counter bearing with oil feeder?
There is a $44 difference in the kits and I don't know which one I should go with.

Thanx for any input.