Hopefully an easy answer...
I need to reconnect the heater on my '64 C10, which looks like it hasn't been used for years (ex-California!)
I assume you run a larger(5/8" ?) hose from water pump to the larger diameter heater pipe (which enters the heater box to the rear) and fit a smaller (1/2" ?) hose from the small heater pipe back to the thermostat housing?
Is this the correct in/out plumbing?
Thanks guys, Limey
