flywheel manual transmission 6.1

the diameter of the auto flywheel is smaller than the stock SB flywheel I have. Is the challenger manual flywheel the same diameter as the auto flywheel? Than I can't use it. BTW I have a Toyota transmission w/ Dakota V6 bellhousing.

I gave today flywheel to a machine shop for welding and redrilling (CNC machine). Hope it's working.