NGK TR55 gap question? ??

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Aug 5, 2011 | 05:01 PM

#11

TX Tahoe Z71

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From: Houston, Texas

.055" on TR55's (when I was N/A) and no problems.

Aug 5, 2011 | 05:46 PM

#12

05gmcsierra

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From: van nuys CA

Will do thanks guys and I still have the tr55s so ill just install those. I have some denso plugs in there rt now they have about 80k on them.. kinda just doing a service on the truck...

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