Where does it work....

[RC-Monster Mike]

Alan,
The Slipperential will drop right into the RC-Monster X1CRT mount (mount was designed to accomodate smaller spurs as well as the large stock spur)and can be used - it will need to be shimmed to take up the extra space(Ofna diff is a little larger). There is no need to switch to the CR motor mount to use the Slipperential. Only the 46t spur is available at the moment, though - so this needs to be considered into the gearing equation. It is a good idea IMO to replace the ring and pinion gears on the front/rear diff to the newer truggy ratio, but with the appropriate motor, battery nad gearing it is not a necessity to use the slipperential (50t spur is suggested for this application, which is in the works). :)