73-82 guys with FACTORY bucket seat TRUCKS...need your help!

[bigblock73]

Trying to wrap up the GM factory bucket seat install in my truck, which was originally a bench seat truck...and I need a little help.

I need to know where GM bolted the inner seat belts. On the drivers side, there is a spot directly behind the rear inner track mount where I assume it goes, but on the passenger side, the rear inner seat bracket takes up the same respective position.
SO, if you own a 73-82 TRUCK with FACTORY buckets, can you chime in and let me know, better yet, post a pic or two if you can?

Thanks fellas, pics to come following the install.