8ight-t race roller conversion problem

[Mentat]

I have the Losi electric conversion kit for my 8ight-t, i also have the mamba monster 2200kv combo, with the losi electric conversion kit do i need to dremel out some areas on the chassis of my 8ight-t race roller? doesnt look like things are lining up correctly and the package it came in doesnt have anything but an exploded view on how to put together, not very helpful. HELP!