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#1
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'66 Tri-Power with Vacuum Linkage, Automatic
I'm building a '66 Tri-Power for an automatic GTO. I have all the components, but do not know which bracket is used on the center carb throttle lever--the bracket that actuates the kickdown switch.. As you know, there were many different styles used through the years. I believe the '66's used the same bracket as '64 & '65, but I want this to be correct.
If anyone has a photo of a correct '66 setup, I'd appreciate your sharing. Here ar the carbs after assembly, before mounting the vacuum switch, kickdown switch, vacuum diaphram, etc. I will post pictures after this is all in place.
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BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan Last edited by Dick Boneske; 06-23-2023 at 10:51 AM. |
#2
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This question has been answered before for the 3x2’s with automatic.
1964-1965 the automatic kick down switch was under the hood mounted to a bracket off the LH side of center throttle plate. 1966 was inside under the dash just above the accelerator pedal.
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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. Last edited by 60sstuff; 06-23-2023 at 04:00 PM. |
#3
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You are correct about moving the kickdown switch under the dash, but you were off by one year. That Change was made in 1967, to both the big Pontiacs & Tempests & GTO’s. I have had a few ‘66 automatic Tri-Powers in my shop. They all had the switch mounted on a bracket held down by the center carb hold down nuts.
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BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan |
#4
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That would look awesome on an OHC!
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"At no time did we exceed 175 mph.” Dan Gurney's truthful response to his and Brock Yate's winning of the first ever Cannonball Baker Sea-to-Shining Sea... Still have my 1st Firebird 7th Firebird 57 Starchief |
#5
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1966 GTO Tri-Power A/T has the downshift control switch #9783241 (#1242101) inside under the dash just above the accelerator pedal.
1965-66 Pontiac Tri-Power A/T has the downshift control switch #9781141 (#9785545) on a bracket mounted to the center carb. HTH |
#6
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Quote:
Waste of my time!
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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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