Yeah, when I first cut that big hole in the firewall and floorpan what was left was really flimsy. It's super solid now but there's also a lot more metal than it started with.That's a lot of work to move the engine back. I'd like something along the lines of a doghouse to give me better access to the trans bolts, distributor, etc., in my truck. I'd thought about just cutting a section from another cab and using it to cover the opening in the original cab but I don't think it would be structurally sound without a lot of reinforcement to the opening. A lot of work for a little gain if you know what I mean.