gas tank 72 chevy

i just got this truck and was wondering if anyone knew what size gas tank is in the truck. its the gas tank behind the seat. also does anyone know where i can get the saddle gas tanks? it had them but the guy i bought it from took them out and bondoed over one of them.

My 69 has a 20 gallon tank behind the seat - I'd guess yours is the same size. As far as being able to get saddle tanks you could check LMC truck (google them, their website was down when I tried to get a link) and/or you could search wrecking yards in your area through http://car-part.com/ Good luck on keeping your classic ins service.

i had a 20.
JC Whitney also has a few replacement gas tanks available, especially for old chevy(s?)/chevies(?).
wtv.
chevieys.