Greetings. I bought an 86 Cherokee with fairly rusted out floor pans. My question is, if I buy replacement pans, which I assume go from firewall to back seat, and transmission tunnel to rocker panel, do they get riveted in or welded? And I have not yet removed the front seats. Are they bolted to the frame? I will probably need to redrill through the new floor pan and attach them on their original place on the frame? This is my first time trying my hand at any kind of body work, and am a little nervous. Thanks in advance.
Greg