TSB #80 - November 24, 1967
(All Car Lines)
A rigid, simple and convenient device for mounting and obtaining accurate dial indicator readings for disc rotor face runout and wheel stud runout is shown in Fig. 2. The adapter may be easily fabricated from two standard nuts available in most service areas.
It is less expensive and more positive than a magnetic indicator base and any mechanic involved with such operations could have quick access to his own mounting adapter.