Well, I posted this over in the 1st Gen forum and got no responses so I thought I'd try it over here. I am wondering if anyone has done a conversion on a 67-72 Suburban to install a later ('76ish to '91) "fold and tumble" (lift bottom of seat up and forward then fold seat back down to flat position) 2nd row seat ?? I have taken a few "loose" measurements and it appears to be possible with some work, but I am wondering if anyone here has done it, knows someone who has or even seen one done with this.