[FC] Trans Question - redo

[Dale Dewald]

Maybe this will be more legible;

I am looking at my Oct 1, 1964 Corvair, Chevy II, Chevelle P&A Catalog #34:

4.417 GEAR, Transmission 1st and Reverse

60-63 Corvair, F.C., Chevy w/3-spd,
64      FC w/3-spd. . . . . . . . . . .  (29 teeth-16 spline) . . . . 
.   3725646
61-63 Corvair, FC w/4-spd. . . . .   1st (3-7/8 O.D.) (31 teeth) . 3775090
64-65 Chevy, Chevelle w/4-spd. .   reverse (35 teeth) . . . . . .  3831748
64-65 Chevy, Chevelle w/4-spd. .  1st . . . . . . . . . . . . . . . . 
.  3849388
64-65 Corvair, Chevy, Chevelle
           w/3-spd. . . . . . . . . . . . .  1st and reverse . . . . . . . 
.   3848091
64-65 Corvair w/4-spd. . . . . . . . 1st . . . . . . . . . . . . . . . . 
.   3852243
64-65 FC w/4-spd. . . . . . . . . . .  1st . . . . . . . . . . . . . . . . 
.  3852244

Unfortunately, the tooth count for parts 3852243 and 3852244 are not 
stated. However, the tooth count of part 3775090 1st gear, which has the 
same 3.65:1 ratio as the 64-65 FC transmission, is clearly stated as 31 
teeth. Are you sure that the transmission you have is a 4-speed? If it is, 
are you sure it is not a 64-65 car transmission from a 500 model, which did 
not come with back-up lights.

1st Interesting Side Note: It appears that the early Corvair 3-speed shared 
a lot of parts with the 3-speed from the Chevy II and Chevelle cars.

2nd Interesting Side Note: There is no listing of a 1st gear for a 65 FC 
with a 3-speed transmission. I know of no 3-speed equipped Greenbriers in 
the 1965 Registry. Were all of the manual transmission 1965 Greenbriers 
fitted with the 4-speed either as standard equipment or as a "mandatory" 
option?

Dale Dewald
Hancock, MI

At 17:46 9/13/2010 -0400, you wrote:
>OK, my turn to ask the question.
>I think I have an FC trans but I know the counter gear and main shaft 
>tooth count will be different than stock. Since this is an NOS trans I 
>don't want to disassemble any more than the side cover. I have counted the 
>main shaft gear and for first gear I count 29 teeth. I checked one of my 
>other stock main shaft gears and I have a 31 tooth count. This leads me to 
>belive this is an FC trans plus the back up switch hole is plugged.
>
>Anyone remember what the tooth counts are? This appears to be a 64-5 trans.
>
>Thanks
>
>
>
>
>
>Ken Hand
>248-613-8586
>www.corvairmechanic.com
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