So the Quark is running good for you? Seems to be more horror stories than success stories with that ESC lately. I guess we just have to remember that the Quark is still a 1/10 ESC, not a MT ESC, so we're actually using it out of spec (like most do with the MM).

Diffs would last longer if you used Al cups to prevent cup flex. Just don't forget you'll need to gear up a little to compensate for the lower geared diffs if you go with the 8th scale ones...

I had integy cups and cases and everything was shimmed, this was a blacktop test on wet blacktop. I believe there was a dry patch in the blacktop that grabbed a little hard. It was still wheelieing through sheer force of the tires though, it would be spinning then it was like the force of the wheels spinning just made it take off

Ok i got a 1515/2.5d/f for the G2R based on Mike's opinion that i need about an 18 to 20 pinion ( I don't want to dremel a 300.00 motor. I need to know what timing settings for 4 pole motor, if it matters. I also got the RC-Monster esc plate for the 125 and will get some fans as soon as i know i need them (I prefer to not run them if i can) thank you