You will need to identify which 70 you have. Go to this page of my website: http://petrolianacollectibles.com/wayne%20pumps.htm
and click on the 70s until you find the one you own.

I have some parts from a 70 I recently disassembled, just post a list here on OG.

Jack Sim
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Author, Gas Pump Identfication books 1st & 2nd Editions & Air Meter Identification books
We rebuild ECO air meters and sell parts.