INSTRUCTIONS: Dimensions are taken from centers. To obtain
this measurement, measure from outside to outside of stud and
then subtract the diameter of the stud (should be either 3/8 = .375
or 7/16 = .4375).
2.2105 - .4375 = 1.7730
Example:
Part #: 327 STD
Part #: 327 Bowtie
Part #: 350 GM 60/40
Offset