Clutches, who has run some different brands? I'm wanting to test a couple including the reds quattro, but believe I am coming the the realization that apparently the NB48 diff is 2-4"mm further than most typical 1/8th vehicles. It seems like most that I see mocked up or try to install myself are a bit short, leading you to ether be forced to run stock or really shim out other manufactures products past what they probably should be. Another alternative is chassis modification but I would like to avoid that. Or am I missing something here?