side mounts are not all the same.
for a 49-54 car, use a 49-54 bellhousing. Its the only one with the correct clutch fork angle.
If you are wanting to add mounts to the sides of any of these housings, there are a pair of tapped holes in the front of the housing that could be used for this purpose. Buffalo may allready make something for this, or a better idea, as Jim suggests. If going to an open driveline, use the tranny adapter plate from Buffalo. It will prevent alot of hassels later on.
