As a rule of thumb, all A-Bodies from 1960 up to and including 1972 were small bolt pattern front and rear.
(4'' bolt circle with 7/16'' wheel studs X5)
And starting for the 73 model year, all V8 and slant 6 with power brakes got the big bolt pattern front and rear.
(4 1/2'' bolt circle with 1/2'' wheel studs X5)
And, all A-Bodies built after December 31, 1976 were all big bolt pattern regardless of engine.
Your '67 Coronet wagon is a B-Body, and all B-Bodies had big bolt pattern. (5 on 4 1/2'')
That is of course unless someone changed it to small bolt pattern, which is highly unlikely.
