I'm confused. The Tekno Site says the following about the Motor Mount under the EB48.3 kit. Did you not get a motor mount included or do you feel it's the wrong one?
Motor Mount:
2-piece CNC aluminum motor mount with precision dual clamping gear mesh adjustment.
Split center diff mount for easy maintenance.
Lightweight direct-to-diff mount design.
Uses standard MOD 1 pinion gears (TKR4171-TKR4190).
Source:
http://www.teknorc.com/shop/tkr5005-...ric-buggy-kit/
Show us a pic of what you feel is the wrong part and we acn help you get it sorted.