Re: Rear brake drums for 1966
Pops:
No, that is not normal. That happens when someone installs the drums meant for a Chevy on a GMC. Those drums would fit the front of your GMC as well, but they are not appropriate for the rear. Check the part numbers listed above and you will find that they have an additional quarter inch of depth (I think they measure 3.54") that would correct what you are seeing in the rear.
Regards,
Steve
New Orleans
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