MBX-5 going BL. Center diff question.

[skeeler]

Hello all.

It's time for some of my patented ignorant-newbie questions:

Can someone please explain to me the issues with center-diff compatibility in brushless conversions? Why does SilentMonster need to swap out his diff gear? And why all the talk about replace the innards of his diff?

Are there some brands of center diff which require less modification? I'm considering using an XRAY or possibly a Losi 1/8th buggy for my conversion. Will these require special attention? Will the Losi's Imperial (non-metric) hardware cause headaches? Does anyone know about any issues that the new Associated RC8 might have? (I realize there's not much info on it yet.)

Follow-on question: What pinion gears are people using with the BL motors in converted 1/8th buggies?

Thanks again, everyone, for all your patience and help.