I forget, and haven't bought any.
Search the regulars like Carter's, american classic and so on.

They have also been discussed here on the forum several times before. Last I remember is they are a specially made bearing only available from the restoration parts place(s) not an off the shelf item at a bearing store or NAPA.

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
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-