[Fot] AN hardware and halfshafts

[Terry Stetler]

It's probably the AN washers.  They are soft because of their intended use on
airframes.  Try Grade 8 washers.

You might also try using the so called "jet nut" type all metal locknut,
though on our Lotus Eleven Le Mans they still manage to work slightly loose
after a couple of sessions.  Though I suspect the inboard disk brakes are a
contributing factor there.

Terry Stetler