Automatic Transmission Crossmember Location

[SinDog]

Hello all,

I've got a '72 GMC that originally had a manual tranny and am replacing it with a Turbo 350. I have the automatic crossmember primed and we are about to paint the frame. I want to bolt the crossmember in before so it is all painted at the same time, however, I have no idea where it bolts up.

The engine and tranny are still in another truck, so I can not set them in to get the location.

I could not find a previous post with the answer. Can anyone tell me the location, measurements, or any other way of find this out? If any other info is needed, let me know.

Thanks for the help!