Gear Diff
I have raced other models with gear diff (Losi 22 and Schumacher KF) and found the gear diff made these buggies really loose on the rear end unless you had brand new tyres.
Recently got a gear diff for my B5M and was pleasantly surprised that this did not seem to effect the buggy as in other cars. I think this is probably due to the in build rear traction the B5M seems to have and putting the gear diff in actually improves the drive.
Having a gear diff is less maintenance and gives a constant performance whereas ball diffs can get crunchy and act differently within a few laps.
FYI: I used 10000wt oil and this seemed to work OK
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