Bucket Seat Mount Differences

[special-K]

I have a '95 Suburban that came with a bench seat. I swapped in a pair of hi-back cloth buckets from a pre-95. The original bench seat mounted the same as the bucket seats that came in the '92 pickup I had. In that truck, I removed the original lo-back vinyl buckets and installed new take out hi-back cloth buckets from a Tahoe. They bolted right in. The original bench brackets in the '95 Suburban, the original lo-backs (outers) in the '92 pickup, and the pre-95 Tahoe hi-backs (outers) all mount the same. I have no idea what the early hi-backs I put in the Suburban came out of, but only the driver side outer bracket mounts the same. Does anyone know more about seat mounting in these trucks?

I took some pictures of the outer passenger side in my Suburban. I think the rear/inner bolt went in the original bench seat mounting hole. I can get more pictures