I guess I didn’t ask the question properly. I hope to reuse this one. I just wanted to know what it was called in case I could not and needed to find one. I was searching this forum as it is on my 40 Chevy truck. It’s nothing no more than a reservoir.

Would this have been a GM part or an add on from Railway Express Agency?

Thanks

Harmon

Last edited by Harmon Hodge; 03/16/2018 9:12 PM.