Question about 1992 GMC Sierra C3500

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Tool for brake line repair

What size wrench do I need to repair a brake line on my 1992 GMC Sierra?

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  • yadayada
    yadayada May 11, 2010

    Is the line metric, some were some weren't

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Most are a 3/8 or 10mm.it is best to use a line wrench so you can reduce the chance of rounding the hex shape.it could also be a 5/16 or 8mm

Posted on Sep 12, 2008

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