I can tighten the screw enough to strip the nut and break the screw.
BUT I DONT!
The diff doesn't need to be anywhere near that tight to work proberly.
I have been running the 501X since Jan-08 and I am using the same diff halves, screw, nut, plastic holder, Front and Rear. The halves do have some play and now need to replaced, the rings have been changed once and I run Acer Ceramic Nitrade Diff Balls. I rebuild the diff about every 2 months if it needs it or not and I use Niftech grease. My lap times are within .5-.9 seconds of the fastest racers at my track and we have 4-5 sponcered guys there. So I'm not a backyard racer with my car barely holding together.
Look at how you are building the diff before you claim that the parts are crap. Tamiya has sent out probably ten of thousands of this diff setup and you have found a problem. Why are you so much smarter then the previous racers?
Maybe it is your driving style?
But don't trash a company. If you don't like it get rid of the car.
Good Luck
__________________
Randy
TRF-501X x 2
Xtra Parts = Small Store
Team Azarashi
Losi XXXT-CR
Losi XXX-CR
Associated RC18R Tekin Mini-Rage/5400
Tamiya TT-01- Very Basic
Associated TC3- Up On Blocks
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