I assume that you are building a modified truck. If that is the case I will tell you what i used in my 52 5 window. I used the seats out of a 2002-2004 Chevrolet Silverado. You have to remove seat framework that is welded to the floor of your truck. The seats bolt in with 4 bolts drilled thru the floor. I used plates on the bottom of the bolts so they wont pull thru the floor in a collision. The late seats also have seat belts built in them. The later center console is too wide to fit between the seats so I used one out of a Dodge Durango. This setup worked out well for me as the seats I got were in very good condition so didn't have to have recovered. Chuick