4SPD TRANY INSTALL

Is your crank shaft drilled for a 4 speed? If not, get this and cut 1/4" off the tip of the shaft...

for Mopar PILOT BEARING Upgrade A833 4-speed Dodge Plymouth 340 360 318 440 400 | eBay
There are cranks that were drilled for the manual transmission pilot hole but not honed to size. It is possible to drive a pilot bushing into a non honed crank pilot bore, but being undersized that over compresses the bushing and it will not accept the transmission pilot shaft.
That got me one time.