Vented gas cap for '72

[72-c20]

Okay, this thread has lots of good info, but not what I need....
http://67-72chevytrucks.com/vboard/s...ht=vented+fuel

I bought a replacement tank for my '72, and it had all the fittings for venting, but my original had no fitings. and I have a single line feed from the sender unit too. I bought a new filler cap for '72 as well, and it fits good, however it's not vented. my original cap will not fit the new neck either....

so the questionis, is there a vented cap that will fit the '72 tank?

[bucky_21_7]

i want to know the same thing i took out my venting thing that goes up the pasenger piller but i bought a venting gass cap but it's 2 big i was wondering if i drill a very small hole in the 72 cap will it vent prperly

[Wrenchbender Ret]

I always drill a small hole in them. It seems like the 71-2 models had a vent tube that looped up the back of the cab & went out the bottom.