I am puzzled by the wiper knobs in my 46. What do the two knobs do? I don't have any arms on them right now, and they no doubt need rebuilding, but what knob does what.
Sorry for the duhhh question, but I don't have an owners manual for the truck.
Scott


1947, 1950, & 1952 Chevrolet 1/2 ton
1952 GMC 450 series Cab Over Engine
1946 Chevrolet 2 Ton