72 dana44 seal parts hard to find?

[budman k20]

I just tore down my 72 K20 front diff now I'm trying to replace the spindle slinger seals and axel slingers along with the ujoints and every other wear part on it (ball joints tie rods etc.). My local NAPA has no parts listed so I brought in my spindles and even with the CR seal number they were not able to cross ref a replacement. Anyone have a suggestion for a parts source for these parts? I was hoping to put my axle back together this weekend. Please help!