Mopar used the same pilot bushing since it had a 5 digit part # probably back to the 40s , but yes for the auto cranks there is a smaller OD bushing available
with the Throwout brg there are 2 , the smaller ID brg for the 23 spline tranny & the larger ID brg for the Hemi / 18 slpine tranny this brg is virtually obsolete from anyone But Mopar but it is prcey