Thanks for the hep guys. I "believe" I have the right flywheel. I have two, and one clears the engine better, so that's the one I'm trying to use. Looks like I'm on the right track with using spacers to make it work. Once it does, it'll be for sale. There's no Monster Truck class at the local track. This thing is LOADED with all sorts of hop ups and spare parts, so if you know anyone interested, PM me. I'm including everything in the pics: