These were in a Audi if I remember correctly. They used 3 mounting points which I'm not used to, but install came out real clean.
I always use the OEM holes since they're much better than simply drilling a hole in the floor and running a bolt with washer that could easily pull through in the case of a bad Taco curse situation. (crash) Just thought I'd share.
I welded a plate with a tab to the floor.
Rear outside bracket.
Welds to seat frame, bolts to OEM bench seat hole.
Rear inside bracket
Welds to seat frame, bolts to OEM belt buckle hole along with belt buckle.
No added holes, only factory ones.
with this under the hood, he'll be glad to have seats that don't move around anymore!