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Q & A: Overdrive Bearings

I have completed the overhaul and have enjoyed the job. Unfortunately I
have noticed a pre loading of the bearings in the case of the overdrive
when I am torquing up the flange to 120lb/ft. I imagine that I must have
miscalculated the shim thickness slightly but would appreciate if you
could confirm my thoughts that if the shim is not thick enough this will cause
the
pre loading condition or have I got it the wrong way around?

I don't know the torque to expect but the annulus/rear flange assembly
should spin easily but not freewheel. You can add shims as needed, but give
the center nut on the flange a good crack with a hammer to ensure the
beari... read more