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Old 09-18-2013, 08:02 AM
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66tri-hb 66tri-hb is offline
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Default 66 gto tri power water pump pulley help

I am replacing my water pump pulley on my car because it has a wobble. I had to source it from a friends parts when we were replacing my 389 back to my car (previous owner took out and put it in the barn) The car is a factory tri power so I would like to replace with correct water pump pulley #. My car is 4speed non A/C with power steering. I hope someone is a great goo-ro and will have this info. I have searched a lot of post but not found what I need. I would love to have all three pulley number if possible.

Help needed

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Old 09-18-2013, 08:18 AM
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Andre Andre is offline
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I don't know the number off hand, but I have the correct pulley on the shelf and can look it up for you.

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Old 09-18-2013, 12:11 PM
BOB VIDAN BOB VIDAN is online now
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Right pulley ends in 8808.

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Old 09-18-2013, 08:45 PM
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I see a few people saying they are having what sounds as ratio problems with there pulleys and just thought it would be good to be correct. Im pretty sure my power steering pump is correct but I have been having trouble with my belts squeeling. They have never wanted to not slip on my waterpump pulley. 9786909 is my pulley now and it is from a 67 400 non A/C don't know diamator. I am heading up to Auto Fair in Charlotte N.C. this weekend and thought I woild look for one.
All help is appreciated

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Old 09-20-2013, 08:16 AM
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Default Original 66 Tri-Power with P.S.

Water Pump, 2 groove pulley - #9778808 XF
Crank, 2 groove pulley - #9778804 (painted engine color)
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1) 65 GTO Survivor. 43,440 Original Miles. “Factory” Mayfair Maize Paint with Black Pinstripe, Black Cordova Top, Black Interior, OEM Numbers Matching Powertrain. Purchased from the Lady that bought it new. Baltimore Built (11A).
2) 66 GTO Survivor. “Factory” Cameo Ivory Paint with Red Pinstripe, Red Interior. OEM Numbers Matching Powertrain. Tri-Power (OEM Vacuum Linkage), Automatic "YR" code (1759 Produced). Fremont Built (01B), with the Rare 614 Option.
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Old 09-20-2013, 08:51 AM
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Thanks everyone !

Im off to Charlotte this morning to find this piece if available..

I do love this forum it is like a big brother.

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