I just now found this web site. Very cool I may add. Anyway. The plugs that fit my truck are ASF42C Motorcrafts. I like motor crafts and prefere the smooth idle quality. I have another set of plugs that my dad gave me, still new in the box of 20. They are AWSF42C. Whats with the "W" in the plug discription ? Same plug or something different? They phisically look the same, just the "W" is different. Thanks.

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95 F-150 4X4, 302, AOD, 3:31 limited slip, all stock, premium gas only, 102k, Runs like new.