Brake emergency

gdizzle said

Front wheels got repacked, new bearings, new seal etc... one front wheel got a new cylinder. all new shoes, new adjusting sets (try tracking those down). The one front wheel that got a new cylinder, also got bled. No other wheels got bled.
Front brakes work great.

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Doesn't a 66 have a MC with only one reservoir? If so, you introduced air into the system when you changed the wheel cylinder.

Bleed the whole system, left rear, right rear, left front, right front, in that order.