KC noisy since new motor!

[bish]

Motor is a New Fantom V2 17.5 (lot's of rotor strength) also a new Tekin 7.5 something is going on as it's pretty damn noisy! Anyone got any tips to quieten it? The side gears are pretty quiet and are lubed. It seems that it's between the spur and pinion. Tried a new spur and pinion - still the same! wondering if there is play in the slipper shaft bearings or a bent slipper shaft?

The thread at the end of the slipper wobbles slightly, spur has a slight high spot where the mesh changes. Anyone else have that? Maybe answered my own question here, just wanted to know if anyone else has this?