Outboard Axle seal for Dana 44 rear 1967 Ford F1

[Redbone]

I'm a noobie looking for an outer axle seal. I don't have the VIN, but my Dana 44 rear axle is a C7TA 602909-2, 3.31:1 ratio. The cup and cone are Timken M201011 and M20147, respective. The inboard and outboard axle seal part numbers are Ford 1177 and 1180. The Spicer Dana numbers are 34419 and 32578. I've been able to find the inboard seal (National 481837) but I haven't been able to find a vendor for the outboard seal. This arrangement captures grease between two seals to lubricate the bearing (and hopefully keep it out of the brake components...). It does not use the differential fluid to lube the bearing. The dimensions are approximately 1.880 ID, 2.455 OD, and .437 wide. Any help would be appreciated!