Quote:
Originally Posted by chevmn
Centric and Rock auto list two drums 123.68001 appears to be for the Dana 60 (12 inch dia), and 123.66024 shows 11.2 diameter.
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I believe the odd ball bigger drums came out on '72 only 3/4 tons. There is the possibililty that '68-'71 drums are one part # and the '72 drum is the other another part #. In '73 GM abandoned both axles for their own inhouse corporate axles.