Be aware that there are different OD's used in GM vehicles. The early one (55-65) has a 4 bolt side cover and will match up with your stock application. The later type 66-69 (7 bolt side cover)is a Saganaw full syncro trans w/OD and is very desireable. It will require a fine spline yoke and some shift arm tweaking. It is also more rare and usually priced accordingly. Either one will make a big improvement in the driveability of this old iron.
Fred
