Apache61, I'm glad someone else has a C20. Do you have pics?
I got the wheel cylinders from NAPA, but ordered the front brake hoses, wipers, and speedometer cable from LMCtruck.
My catalog from them is for C10 & C20s, but a lot of the items they just have for the C10s. For instance, I need the hood emblems, and all they show in the catalog is C10 emblems.
Do you have any other sources? I've checked the junkyards around here, but all their 61s are 1/2 tons.
Husker