Yes you can use the 14mm screws. The rear diff case is the only thing I have
broken so far. Its breaks when the chassis gets back bowed. Either slamming
down on the wing of an Ebuggy (more weight and less support than the Nitro)
or by casing a jump HARD with a nitro or e car.
Trust me you gotta hit really hard to do it.
Thanks for info. Holes are really for 15mm screws, measured this with calipers. Just wondering why Tekno made deep holes but only 10mm screws are included for rear braces.