Had a chance to clean out and shelf all the parts transported in the Burb....and throw the seats in.
I did find out something though (I think there is a thread on this somewhere)
These seats are out of a 66 Chevy Burban...
The second and third rows DO NOT directly bolt in.
Without relocated floor anchors, The middle seat will require two holes drilled in the tubing of the seat frame (no biggie)
The rear seat however ... will require some fab work ... or in my case just swap the cushions onto my existing rear seat frame.
(PICS SOON)
I am not sure if this is a GMC thing, or if its a 60-62 vs 63-66, or a combo of both ??
Hmmmm....