02030 DRIVE GEAR HSP ATOMIC TYRANNO HIMOTO ETC for 1/10 scale
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The front diff on my new HSP 1/00 brushless monster truck was sometimes making clicking noises on the very first run. After about 4 good runs, the front wheels were not driving at all. I pulled the front diff apart and discovered that the 02030 drive gear was stripped. The problem was the main diff assembly had some side to side play which did not allow the drive gear to mesh properly. I ordered some new drive gears from RCHobbiesOutlet and when I installed a new one I made a shim to go between the main diff assembly bearing and diff housing.
The diffs are virtually silent now. I have run a dozen 2s 3500 mah packs through the truck with no issues. I have even run it on 3s a few times and it holds up great.