When you start modding the steering for more turing raduis you start having problems with the dog bone poping out under bumps or hard steering. Itill one day i came across an duratrax raze st and i robed the drive bones and the size was perfect. I still can get all the traval in the a-arms and...
To me it sounds like he never had an nitro and runs electric or does not run them enough to come across that problem . On all my nitros i have sealed with rtv and green slime. It is one of best thangs to do because the o-rings do not make an good enough seal and thats when the rtv sealent comes...