I got a hydrovac for my 59 from the local orielly auto parts. I did trade my core to get a little better price. How different are they for your truck. I can look back at the receipt to get the part number if that would help.

Edit... I found it online:
BrakeBest Brakes - Brake Booster
Line: BHH | Part # 51-8028

Last edited by Gene_Spartan80; 06/24/2016 4:00 AM.
1959 Chevy 8500 - Spartan 80
366 BBC