Are the gas caps on early and later A bodies physically interchangeable?
Gas Caps
- Thread starter RustyRatRod
- Start date
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67-70 interchange. 71 is on its one. 67-70 will not fit a 72-76. 72-76 will work on a 67-70 but will not be clocked correctly. The tabs are narrower on the 72 -76 then the 67-70. The 67-70 will work on the earlier 63-66 bit the handles are different
HemiSSDart
Dartus Interuptus
I thought that the 60-66 caps were physically smaller in diameter...
Professor Fate
Push the button, Max...
I have yet to see a later cap that fits an early A ('66 and earlier), but I have had to repair several early filler tubes that had their inner diameter beaten and bent out to force a later cap into them.
To the original question I have to say no- later caps don't fit early As.
Unless someone else beats me to it, I'll try to post some measurements and pics later today after I get out to the shop.
4mulas
Fixem'up
No. 1966 and down had a smaller diameter filler neck into the tank and where the cap screws in. Early caps are major hard to find in good shape. After market chrome locking ones seem to be about the only ones that fit, I think.
Here’s a good example of an early cap that came from a 1966.
[FOR SALE] - Original 1963-1966 A-body gas cap, Dart, Valiant, Barracuda Paint Grade excellent condition - hard to find
Thanks yall. This helps a lot. If I do this mod, it'll just be a little more difficult. No surprises there. LOL
4mulas
Fixem'up
Not sure what all you’re trying to do, but I’ve thought about this before and was thinking a 67 and up tank should fit a 66 car so long as you change the filler neck too? Then gas cap choice will be easier.
I am going to modify the filler neck for a Dart sport with the fold down seat. It has a SHARP turn down immediately after the fill hole. I believe that might help with the fuel overflow.
65TerrorCuda
Well-Known Member
I believe @damraider makes the early A caps, solid aluminum. I've got 2 of them
Now that's what I call a gas cap collection!!!!
vitamindart
Well-Known Member
I swapped in a tanks inc tank with baffles and that puking out the filler neck stopped completely.
before that I welded a baffle ( just a washer spaced off the bottom of the filler tube ) and that worked pretty well. I think slantsix dan use to have a cap option as well. I did get one of damraider's to put on mine along with an adapter if I ever want to go flip top.
before that I welded a baffle ( just a washer spaced off the bottom of the filler tube ) and that worked pretty well. I think slantsix dan use to have a cap option as well. I did get one of damraider's to put on mine along with an adapter if I ever want to go flip top.
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