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66 GTO Harmonic Balancer Pulley

 
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bob1966



Joined: 29 Apr 2008
Posts: 48
Location: Ocala, FL

owner since 1968 1966 GTO

PostPosted: Tue Dec 15, 2015 11:05 am    Post subject: 66 GTO Harmonic Balancer Pulley Reply with quote

Can anyone tell me the correct a/c pulley # for 1966 GTO.
I'm getting two different answers.
One is it had a singlel 3 grove pulley # 9782703.
The other is a two grove pulley that you added a 1 groove pulley to #9782704.
Thanks,
I have a two groove none a/c 389 that I'm adding a/c to.
Bob
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Joined: 22 Jul 2006
Posts: 42




PostPosted: Tue Jan 02, 2018 8:26 pm    Post subject: Reply with quote

The other is a two grove pulley that you added a 1 groove pulley to #9782704.
Thanks,
I have a two groove none a/c 389 that I'm adding a/c to.

the answer is a two groove pulley which has a second single pulley behind it but the two groove pulley is NOT the non AC one that is currently on the engine. You must use the AC two groove pulley so the offset is correct for the belts to line up.
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