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.
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
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)
