FMX transmission flywheel question
 

Hello, and thanks in advance for the help. First of all, I am totally new to all this car stuff and I often get the names wrong for parts, but here goes.

I bought a 1966 Galaxie 500 with a toploader 4 speed MT. I am exchangingthetoploader 4 speed for anAT which is an FMX. I have the correct torque converter but I cannot seem to find the correct flywheel among the parts I have. The parts diagrams I have indicate a flywheel with parts number 6375, but I cannot find a photo of such a flywheel anywhere.

If you can help me find a photo of the correct flywheel or have any info about the correct flywheel for an FMX transmission I sure would appreciate it. Would it be worthwhile to visit my local transmission shop?