few options, one would be if your flywheel goes up enough you can dremel the chassis wider so it can connect and even more check if your starter box has a way to move that wheel up, what starter box do you have? If your wheel is worn more then likely it can be flipped (most starter box wheels can do this) and that would give you something to work with if your wheel has a worn groove. In my opinion unless you can get lowered mounts this may be a situation where you need to go shopping for a box that can do the job. On my Losi 8 4.0 I had some lowered mounts but they were forsure custom that I got from a friend and didn’t work with my Losi box. If you have some rtr mounts then your fine just get some kit mounts or aftermarket. Aftermarket may offer a lower set up but I would assume they follow a standard. Hopefully.