will my turbo 400 cross member work with a700R4 the car is a 68 camaro

The TH400 crossmember must be modified to work on a 700r4. The TH400 was only put in Big Block cars from the factory, so the trans. plate is offset. That is 1 problem. Also a notch must be made in the crossmember so the trans. pan can be removed. The above was done to my car, so yes it can be done.

Bowtie Overdrives sells a crossmember.
http://www.bowtieoverdrives.com/catalog/catalog.php?Action=GETSUBCAT&CATID=YA1A1
Bummer... looks like the price went up this year.

Sickdog,
What engine are you running in your camaro? Just asking since you were running the t4oo xmember, I was assuming you were running a big block.

Dean