MBX-5 going BL. Center diff question.

[lxmuff]

Mike has the 4mm mod1 pinions for the Lehner. I have a MBX5 and use a kyosho center diff(the whole thing includung the posts). It fits directly in the MBX5 holes. Of course the kyosho plastic gear works on their diff. I have a
8ight I'm converting now and it takes the kyosho plastic diff with no other changes. Save yourself the headaches, JUST GO PLASTIC DIFF. I usually run a 12-13 pinion at my local track from Tower(century heli pinion).