ya i my chassis felt good in stock but in mod it may have been flexing but it could have been my rear diff. im getting a new chassis anyway but i will still try this chassis again with and with out a top deck and rebuild or put in a new diff.
i was going to get the hardcore outdrives but cant you just use associated circular rings instead of grinding the outdrives thats what i did for a steel diff i have.
i will post pics later when i am done with the top deck. it will be simple design but hopefully affective.