[AmiSMB]

I think you should invest in some digital calipers for making measurements and not use a tape measure as this will help in the future. I set my bearings to what they state in the manual but found that the shaft moved in and out of the gear box so just took up the excess by moving the output cup closer to the outer bearing making sure that it still had a little float but not too much. I also recommend using a small amount of electrical tape on the top and bottom of each bearing so that the plastic diff cases hold the bearings a lot tighter.

As I found with my Losi 8ight-T when the ring and pinion failed and I just replaced them it went again almost straight away. The only way to fix it properly was new bearings, new ring and pinion and new gearbox plastic. I have been in the game a long time and even I made the mistake of not replacing all items and I did not check the rest of the car and on the next run found that the centre diff was also ruined as it had got too hot and the cross pins had melted the diff case which could only be seen when it was opened up.