Dads50, it is "there" for sure but my tube extends further down to a carrier bearing for the open driveline. I found in a parts book a seal (OEM #348259)referred to as the "universal joint ball collar seal".
I found an illustration of your "here" photo which describes a cork or felt packing washer depending on year. Mine is unique since it is for a 3/4 ton, the part on mine is at the center carrier where the torque tube converts to a drive or open propeller shaft. There is a bearing in the center carrier with an oil seal. Not sure, but for me I think it calls for a 2-19/32"ID seal with OEM #3653618 (Update, I found an interchange part at RockAuto, SKF Part # 25970.)
I'd like to know what the modern parts numbers are, where to get them, and what to expect when repairing them.
Last edited by 641Workmaster; 05/06/2013 1:32 PM.