Try the guys at Lincoln Clutch and Brake in Lincoln NE. They pride themselves in the old and hard to find. Had all the wheel cylinders, master cylinder, wheel bearings etc on the shelf for my 1946 2 ton.
(402) 475-1439
1946 PW Grain truck, 1966 C10 long stepside, 1972 C20 Custom Camper Big Block, 1975 C10 Silverado OE big block.
| 
