flathead flywheel?

I'm gonna put the T-5 behind my flathead..I want to put a 10 inch clutch in it, stock is 9 1/2 inches I think I'll need a different flywheel, no? Any suggestions are appreciated..

 

If it is for a 8BA then the standard duty truck flywheel is the one you want; standard with the 3spd tranny. Has 112 teeth and takes a 10 tooth drive gear which is the same as used with thr 9 1/2". There are also many out there with dual plate holes. The 11" is by itself.