I believe the 48-up stovebolt bellhousing has the same bolt pattern as the 4500. Are you trying to replace a crash box transmission with the reverse lockout lever on the shifter?
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!