Originally Posted by
pdlamb
Out of curiosity, does the NDS arm need to be replaced after this maintenance flop, like an older square taper arm would need replacement?
Yes.
Originally Posted by
Moisture
Even if those pinch bolts/ preload bolts are tightened to the correct spec, some designs will still loosen unless you use a bit of thread locker.
No, grease should be fine.
Originally Posted by
Polaris OBark
Reading your last two posts, are you saying the whole crankset should be replaced, or saying only the left-side crank-arm needs to be replaced, because the steel spindle splines are likely still intact?
Normally just the NDS arm.