Here are some pictures of the issues experienced above in mounting the booster assembly.
Note the location of the holes for the cross-member that was removed! Pretty much right where the master wants to go.

http://i289.photobucket.com/albums/ll224/decosse01/Chevy/P4230723.jpg

http://i289.photobucket.com/albums/ll224/decosse01/Chevy/P4230728.jpg
http://i289.photobucket.com/albums/ll224/decosse01/Chevy/P4230729.jpg