transmission identification aka spline count

[Dean McQueen]

Can i identify and determine a spline count on my 2015 GT from the parts numbers on the outside? My clutch has "disappeared" recently and i need to order one more suited for the Whipple forced induction but i need a spline count. Thanks for the help!​

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[robvas]

It will be a 23 spline unless it was upgraded to a 26 at some point. No way to tell without looking at it, unless you can see the splines through the inspection hole.

 

[Dean McQueen]

OK, I bought it with some modifications (however, as far as I know a stock clutch and only 12k miles) so I better see if I have a good number for the 1st owner or head for the inspection hole. Other than the obvious (3 more splines) is there any way to tell visually? I guess the better question is . . . Is it possible to count them in the inspection hole? I have a feeling, since I've never seen either one(23 or 26) it will be hard to tell. Either way thanks for the help.

 

[robvas]

If it still has the stock clutch it still has the 23 spline input shaft

 

[Dean McQueen]

That's a very good point that I overlooked. : ) Kind of a "can't see the forest for the trees", I guess. Have a great day!!

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