Can anyone provide pictures and measurements of where the brackets go in an 1987 Suburban for the 3rd seat? I've got a 3rd seat that came with the vehicle but it doesn't have any of the brackets to attach to. Apparently Chevrolet does not offer the parts any longer and my usual go to place, lmctruck.com, does not offer them. Sitting a ruler in a couple locations next to the bracket would help me fabricate them (or if there is some place online I can order them even better). If you could offer measurements to properly locate them on the floorboard it would be appreciated and the pictures would be a visual aid. I'd be happy to take pictures and write up a small how to for posting on the web. I'll be looking at a few salvage yards on my next trip to town (I'm in a rural area). Thanks.