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#1
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65 GTO 3 speed transmission
Was the 65 3 speed, the same as the 64, in that the tranny wasn’t fully synchronized?
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#2
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1965 Muncie, M12, Standard Duty 1:st gear not synchronized.
1965 Ford Dearborn, M13, all forward gears synchronized. |
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#3
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Thank You. Is the M13 a 3 or 4 speed transmission. Thanks again.
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#4
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Both of those are 3spd
I think the side cover bolt patterns are different between them. |
#5
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I am guessing there was a typo, and that 'M12' application was for 1964(?).
The RPO tends to tell a story - the only confusing part is that many people associate an RPO with a singular physical item; GM reused RPO's year after year, and the RPO was intended to imply the type of part installed. The physical part installed could be different over different model years, or different in the same model year - between different body styles. Divisional differences ad another layer of complication in using an RPO to identify a single part. M11 or M12 were different RPO's used for a light duty or regular duty three speed transmission. M13 was an RPO which specified a 'heavy duty' three speed. M20, and later M21 were used for four speeds; M20 essentially was intended to indicate a wide ratio four speed. HERE is a link which may be useful.
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#6
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Mr. Eric White book.
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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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#7
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The three speed Dearborn had a top cover and was also known as a Toploader, like its four speed counterpart.
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express |
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