Anyone have the dimensions of the A body Hemi seat brackets?

[az426hemi]

I am looking for the dimensions for the Hemi a body seat brackets so I can make a set. Any help will be appreciated.

Mike

 

[mjs69gts]

the specs are in the guide book authenticity guide 1968 dart and barracuda hemi super stock by jim schild got mine from mancini racing page 44 with diagram s