Help!

[swamp rat]

I have tried for 3 days now and unsuccessfully to find this wheel hub seal, the part numbers are worn off. Its included in the grouping of the SBK-1 kit but this seal isn't in the kit. I stopped at the local 4X4 shop today, they have a couple seals ordered for me but they were not 100% sure ether, nobody seems to have a breakdown that lists a seal number.. Anybody?

72 K20
Dana 44-5F MFG 1971
Smaller diameter hubs

(Hub bore)= Seal OD 3.000
(Axle diameter) = Seal ID 2.005

One more question, I got these ball joints a while back almost ready to install, when i pressed the old ones out they have a smooth diameter, the new ones have serrations, is this common? the serration area measures about .007 larger than the old ones, do the serrations just get smashed down to where they look smooth?

Thanks in advance!