like it was already well put, the design is based on a 10+ year old rustler. i thought the rustler was the perfect speed vehicle before i got into 1/8 buggies. Now, i wouldn't touch a rustler or slash/stampede with anything more than a 2S. it's just too costly to keep up the drive train.
it ended up that running the flm transmission case with a locked(JB welded) diff with flm arms and cvds with a locked double nutted slipper was about the only way one could really bash hard with the bigger motors on MT tires. people then started to use 8ight shocks because by the time all that was done the truck had so much body roll it was dam near impossible to keep stable.
in the end, all the bling and money would have been better spent on a used buggy roller.
imo there's just no good use for a 2wd anymore unless it's a pan car.j/k