Curious whether or not these throttle assemblies can be take apart. The ones pictures here don't have the handles on them so they could stick through small grooves inside a dash to mount. However, I cannot seem to find any new plastic levers that would fit on the end of this throttle so I might have to look for a new similar throttle assembly that already has the levers installed. The dash I'm mounting them on only has two slender groove cut outs and is mounted by a single bolt on the inside that goes through the center of the throttle levers. Anyone know if these can be taken apart so I can slide the bottom of the levers in through the top?