I got the sub seat as well and was wondering about mounting it. My gas tank now sits under the bed so the area under the seat has plenty of room. For anyone who has put one in, did you leave the original seat riser (gas tank surround) in place or take it out? The suburban mounting strikers (part # 15013755) and plates (15742356) are current parts available through GM (about $100) but it would still take a bit of fab work to make work. It’s not like I’ll need the quick detach feature as one would have in the cargo area of the sub. Once the seat is mounted I’m not sure I would ever have a reason to remove the seat in the future and if I did removing a few bolts doesn’t seem too bad. Any thoughts or suggestions?