Maybe i used the wrong word when i said "screaming". It is more like a "zzzp" sound. I thought my diff were tight enough, because if i hold one wheel and the spur gear and try to turn the opposite wheel with the other hand it does not move. Maybe just a little bit if i turn hard.
In any case i will tighten both diff by half turn, just to be sure.
At the track i was the only one with the Mamba Max 5700. Other people were using 4.5 or 8.5. I could not compete with the guys using 4.5. I was on par regarding top speed with some of the guys running 8.5.
Mattia.
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