impute gear?

okay guys i have a chev 283 adapted to the stock t-90.
my question is anybody with an idea on the impute shaft tooth count?
is it ten? reason im askin is my clutch is going out and im looking into replaements before i have to tear this thing open. any ideas.
oh its a 10.5 inch clutch if that helps. thanks guys.

 

I believe 10 spline by 1 1/8" Anybody?

 

T-90 being stock for what ?
You want to know the main drive gear ( input shaft ) tooth count or the spline count ?

Jeep mostly used 3 different main drive gears for the Borg Warner T-90's.
4 cylinder Jeep engines all have 10 spline, 15/16" diameter shafts.
So those do not work with the common GM clutch driven disk.

It's likely that your T-90 has the W/O # 906203 input gear from a Jeep SW or Pickup.
That main drive gear is 10 spline, 1-1/8" diameter and has 18 driving teeth.
Those must be mated to the 33 tooth countershaft gear ( cluster gear ).
That gearset yields the typical 2.798 first gear reduction ratio.


It is also possible that an IH Scout main drive gear is installed to allow use of common GM 10.5" clutch driven disk.
The IH T-90 main drive gear is 10 spline, 1-1/8" diameter.
IH main drive usually has 16 tooth driving gears.
Those must be mated to the 35 tooth countershaft gear ( cluster gear ).
That gearset yields the desireable 3.34 first gear reduction ratio.

 

thanks guys for the info.
talked to my gramps, who did the conversion.
got it all figured out.