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markeb01 · 06-27-2011, 02:48 PM

Other web posts indicate the Tandem Lock light is an indicator for a two speed rear axle found in C60-C80 trucks.

06-27-2011, 02:48 PM	#4
markeb01 Senior Enthusiast Join Date: Feb 2007 Location: Spokane Valley, WA Posts: 8,356	Re: tandem lock Other web posts indicate the Tandem Lock light is an indicator for a two speed rear axle found in C60-C80 trucks.