[MPGranger]

Okay so I want to start my first modification on my truck and decided to do the grill block. I just looked at my grill and it's a massive hole! How do I even attempt blocking anything like that?

I've also seen a lot of threads with owners running mock ups before making something more permanent. What materials would be good for the job? And can you explain it in smaller words so the new guy can follow? Sometimes I think I need a chemistry degree to know what is what.