The hemi input shaft is definitely larger than the 23-spline. Mark ----- Original Message ----- From: "neal zimmerman" <neal.zimmerman@xxxxxxxxx> To: "1962to1965mopars" <1962to1965mopars@xxxxxxxxxx> Sent: Saturday, February 21, 2009 11:41:50 AM GMT -05:00 US/Canada Eastern Subject: input shaft diameters does any body know if a regular B-body 4 speed has the same diameter input shaft as the hemi B-body 4 speed. I know the splines are different , but i am wondering about the actual shaft diameter. neal zimmerman, eugene oregon [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.