[Shark413]

Cain,

1. I lined up a steel Kyosho spur with the stock Z-Car spur and the holes are slightly different, So I would say it is not an exact match (bolt pattern). Also, the Z-Car diff is shorter (ala Kyosho M9) so most other diffs won't fit.

2. Using the stock Z-Car 44T spur and a finned 1512, the smallest pinion I could fit was a 16T, which really gears the buggy way up. That is why I moved the rear chassis brace over to the otherside (see my post on page 5). Now I can go down to a 12T pinion if necessary. You use a smaller diameter motor, like a non-finned Neu or 60mm Medusa to get more clearence.

3. If your not going to use the mech brakes the ESC and RX can be fitted on a custom extended center diff plate. Because the MMM is so big there are not a lot places it can be mounted.