10" clutch issues with T-5 adapter

[37 truck]

I have had a T-5 speedway adapter with a 1940 flathead and 9" clutch with no problems. I just switched to a 59A flathead with a 10" clutch, and it goes together with the adapter, but will not turn over. I have heard there can be clearance issues with this setup. What have others done in this situation? Clearance aluminum case, or remove outboard clutch finger weights? This is a stock throw out bearing.