It's not the bellhousing you're having issue with; it has the "large" 4.805" hole in it (as opposed to 4.354" in the "small"Hello I’m trying to convert my 69;over to a 4spd my bell housing number is 2892626 running 143 tooth flywheel tried setting up my clutch tonight Tranny won’t go in all the way seems like center hole in bell housing is 1/4 to small what’s your hole measurement? I’m running a 833 70 or newer raised pad 136. 1 not sure what that means thinking I have the wrong bellhousing???Not sure it’s dated 4/2/69;front bearing C13157 thanks Gregg