kneedeeppow

i have been putting a bd together over the last couple months.finally got a motor into it today and got it spinning.noticed that it drives hard from the rear.i read that a spool or ball diff is a better option.how do these work? previous rc was a tt01 and i locked both diffs and it drove nicely from the front and rear. would doing the same in a belt driven chassis have the same effect?
cheers

Spetz

Spool is a locked diff
Normally you don't want locked diffs for driving as the car tends to turn slow etc as it wants to go straight (since the wheels can't spin at a different rate).

If I was you, I would just get some diff oil, and fill up the diffs with it so they're not fully locked, but have a limited slip effect