Well if you have the pre 93 trans. and pre 93 bellhousing, then I would notch the crossmember and make that to work, but you will need a spacer for the driveshaft at that point as the diff. in lenght will have to be made up someplace.
otherwise you need to make sure you have the correct bellhousing 94-95 with 94-95 input shaft or pre 93 trans with pre 93 bell. I think you will need a fork from the pre 93 as well (not sure about that though). IF you dont the trans will not fit all the way onto the bell or the input shaft will not sit in the bearing (on the crank).