Roller Pilot bearing goes into the back of the crank,to accept the smaller shaft of the 4 speed.so I unbolted our 727...and now looking @ the crankshaft...the 4 speed has a long shaft..that is much smaller in dia then the 440/auto motor...so...whats the accepted method to fix...
Can,t say 100% sure,but it looks like the one I put in the back of my 340 when I had my motor stroked,and replaced my clutch.