Okay I bit the bullet and got some of the MT four wheel passenger trucks with the adjustable coupler. The one with the really, really tiny screws that holds the coupler to the truck. I have managed to lose two of the screws and so I am now screwed myself because MT only puts one screw per truck in the package. So I go to MT's web site to order more. Can't find them listed. Next choice is to call them this afternoon (East coast/West coast thing). Having said that here is my question. How does one put in the screw without launching it into a parallel universe? Please note I do not want to body mount the couplers.