I have also made the felt seals, for front and rear axles on a 1929 Hudson car.
Buy the felt from McMaster Carr, and also a gasket cutter from them. It has two blades, one cuts the inside diameter, and one the outside, all at the same time. Sharpen the blades as sharp as you can get them, tack the felt to a board, and carefully cut out the felt donuts. The circle cutter is not supposed to be used in the drill press, but I ran it slow with a slack belt, worked great, just don't stick your fingers in there.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-