Better outdrives for Yokomo's MR4
 

Hi guys,

I have a Yokomo MR4 and overall i love the quality of that car.
However, one thing is bugging me a wee bit, the outdrives are ALU. and they notch rather easily.

Are there any outdrives made from good ol' fashioned steel available?
Their off-road car use steel out-drives, but i'm not sure if they fit?

Any help?