[Don66GTO]

I have a 66 GTO with a 455 out of a 74 Lemans. It also has a TH400 with a either 8 or 9 inch tailshaft. the transmission went out so I ordered a beefed up one from the local parts store and after they got the right length transmission to me the output shaft was larger. I need to have the 32 spline yoke on my drive shaft. The old blown tranny used the 27 spline shaft I think. anyway has anyone heard of a th400 with 27 splines? the numbers for the tranny when run at the parts store came up as a 73 Lemans and a rolls royce.

I figured I could just get another yoke later so I started to finish installing the tranny when I noticed that the torq converter was not lining up with my flex plate. the holes on the new torq converter are farther away from the center. Has anyone have any idea how many different patterns there are for torq converters for Pontiacs?


Any help would be appreciated.