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Canadian Poncho Homepage -> Canadian Poncho -> 65-70 Full Size Power Train Tech Forum -> M 13 Heavy Duty three speed transmissions (Later called MC1)
Post Info TOPIC: M 13 Heavy Duty three speed transmissions (Later called MC1)
Jonno


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M 13 Heavy Duty three speed transmissions (Later called MC1)
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Anybody out there with a full sized Canadian Poncho or Chevy with one?

The M 13 was produced 65-68 and the MC1 69-72.

These HD 3 speeds were the base transmissions on big block high performance applications.

I know 68sd has some Chevelles and Beaumonts in his listings with them, but no full sized.

So, anybody out there with a M 13 or MC1, here is your chance for 15 minutes of fame!  smile



-- Edited by Jonno on Sunday 13th of February 2011 09:37:30 AM

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Jonno

1990 Mazda Miata MX-5   5 speed stick

1992 Dodge Dakota SLT Shortbox    5 speed stick

1968 Oldsmobile Delta 88 2-door hardtop  455-TH400
Beaumont4008


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For those who do not know the M13 is the Borg-warner trans and the MC-1 is the Muncie trans.

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Cheviac


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I have one that came out of a 66 Chevelle sedan , looked like a truck trans to me. I'll dig it up and check the dates on it.

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Cheviac


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This may be off topic as I'm talking about a Chevelle not a full size but this is odd don't ya think?  Looks factory with the shifters on it and it weighs as much as a 60's saginaw( I have a couple of mid 70's sags and there is a noticable difference in weight) What do ya think ?...factory option or did someone put it in there.

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4SPEED427


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My guess is that is an original. To me it looks like the 3 speed Sag that is basically the same as the Sag 4 speed, right down to the case and mainshaft being the same.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
Cheviac


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Side cover with date.

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427carl


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pontiac plates 149.jpg


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Jonno


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Cheviac, you have a three speed Saginaw, build date Oct. 7th 1965. The Maincase casting # should be 3858986 and the extension housing # should be 3881854.

(Source - "Chevrolet by the Numbers 1965-69" Alan L. Colvin author, Robert Bentley publishers)

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Jonno

1990 Mazda Miata MX-5   5 speed stick

1992 Dodge Dakota SLT Shortbox    5 speed stick

1968 Oldsmobile Delta 88 2-door hardtop  455-TH400
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