I had a '39-'46 master sleeved in SS about 4-5 years ago by a local company. Cost was $65. (more now I'm sure) They repair and sell brake parts for all kinds of old cars, trucks, tractors, forklifts, whatever. They ship parts to many of the suppliers across the country.

Brake and Equipment Warehouse
455 Harrison St. NE
Minneapolis, MN 55413
(612)378-3141
(800)233-4053

To be long remembered as he's cruising in
The Passing Lane