I am finally getting my transmisssion back in my car after about a year. I have everything figured out, except where did the ground from the battery go? My car has a 3.2 in it. I was thinking somewhere on the engine, maybe the bellhousing stud that comes out of the case? There is that ground going from the transmission to the bottom of the trunk, so if I were to use the bellhousing stud, then it would connect be right at the motor and at the transmission.

My battery is in the rear trunk.

Anywhere that's convenient on the body. You could simply drill a new hole and run a bolt through. If there's a bellhousing stud nearby, that will work fine.