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Old 03-16-2015, 09:51 PM   #10
Blazerowner
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Join Date: Apr 2006
Location: Yuba City, Ca
Posts: 1,969
Re: blazer top rail holes?

My 72 only has holes for a single wall. I've never see them with both unless someone modified the holes. More than likely it was done because they couldn't find a single wall so they stuck on a double wall which are easier to find and as simple as drilling some holes. The original holes are also oval shaped for adjustment.
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Kirk
72 Blazer CST 4wd highlander
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