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GRX · 07-13-2016, 11:15 AM

At this point I will mention to make sure you get the right type plug. The seat was switched from gasket type to taper around this time. And you never know what has been done to a 44 year old truck.

07-13-2016, 11:15 AM	#5
GRX Registered User Join Date: Jul 2010 Location: MD Posts: 1,937	Re: Spark Plug Help At this point I will mention to make sure you get the right type plug. The seat was switched from gasket type to taper around this time. And you never know what has been done to a 44 year old truck.