ball diff broken

[racingdwarf]

hmm does sound like you could do with some hand on help there , if its fairly quick normally but then was doing walking pace and if the motor is all good it should have been screaming it's tits off ( top of the class mechanical termination ) If it wasn't then that would point to motor or esc, but if it were screaming then head for the transmission...maybe if poss it's a good thing for dudders to take a look

[Gnarly Old Dog]

Bit of a daft question maybe but are you still sure that it's your diff and not your slipper?

Glazed slipper plates can make a fairly similar noise to a slipping diff.

To help identify whether it's diff or slipper, I mark a line on the outside edge of the outer slipper plate, hold the left rear wheel and spur gear in one hand and slowly try to move the right hand wheel. If it slips but the line on the outer slipper plate stays still, then it's diff slip but if the line (and thus the slipper plate) moves, I know its the slipper and not the diff.

Once the slipper plates have glazed, you need to replace them. Their Hard anodized coating makes them very unforgiving to repairs. You might get away with some scotch briting but generally, once they've glazed, they need replacing.

It's amazing what a new set of slipper plates feels like

Don't confuse the slipper plates with the pads. The fibre pads can be bought back to life by flipping them or by gently scraping the glazed surface with a scalpel blade but the plates themselves are best replaced.

Just a thought - since most the thread has been discussing the diff and your strip down has not revealed any of the normal culprits, perhaps the issue lays elsewhere.

HTH.

[racer11]

not really local, around Woking station...ish, its all laid out on my table in peices so not really sure what you mean by pick-up but your welcome to come and have a look! but might be way to far to travel. i just took the diff apart and all seems fine in there but since you spoke of a fine glaze around the slipper plates, there is a shinier surface but no change in texture or smoothness that i can feel