starter problems

[65truckowner]

I have a bell housing, flywheel,(10 inch) and new clutch and pressure plate. I tried to put my new starter on today and it looks like the starter needs the 11 inch flywheel instead of the 10. I don't think it will engage . Is there a different starter? It is the one that bolts onto the bell housing. The flywheel and bell housing and transmission came out of the same truck. I now have a 350 in front of it instead of the 6cyl.