I know that this is an old thread....but I just posted some more on this in the truck section.

All my OD833 trannies(four total) & (1) regular 833 are all off on that same ds bottom hole also.

I have two small block mopar style OD833 bellhousings and one BB OD833 bellhousing and had a Lakewood that I could bolt all my 833's too.....but none of my 833's will bolt to this bell.

I'm going to modify this bell for me.....but it sure makes a person wonder if they didn't do something different in the last few year for the OD833's?