<VV> FC 4 spd ID

James Davis hurricanehazel16 at gmail.com
Tue Apr 21 10:47:15 EDT 2020


1961 4-sp have the 12 point spline input shaft, where as the 1962 and later
has a 14 spline input shaft.  All the 1962 through 1965 FCs 4-sp have a
3.65:1 1st gear..  There are 1st and 2nd generation FC 4-sp in the
1962-1963.. as well as 1st and 2nd  generation1964-65 4-sp boxes.
Jim Davis

On Tue, Apr 21, 2020 at 8:16 AM Paul Fox via VirtualVairs <
virtualvairs at corvair.org> wrote:

>  According to the junkyard primer It must be a 61 because later years had
> a hole for the BU switch. The large fill plug side cover could have been
> changed somewhere along the line. Should also have drain plug that was not
> there in 64-65. If it's the super low first gear might be a good candidate
> for a 3.08 rear gear.Paul Fox
>     On Monday, April 20, 2020, 06:50:48 PM EDT, N2VZD TIM via VirtualVairs
> <virtualvairs at corvair.org> wrote:
>
>  Is there a way to ID  FC 4 speed without taking it off the differential?
> This one is with HL differential , has large fill plug , no backup light
> switch hole .   It came out of a 63 coupe from Denver area.  We are putting
> a 3:27 unit in it with a car transmission.Regards, Tim Colson
>
>
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