I dont think they came stock on them, but I have been known to be wrong. It shouldnt have too much of a negative effect, as long as you dont turn fast, or road race, I wouldnt think.
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'90 GT Under construction
Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!!  
04 F-150 STX 4.2L 5 spd
Rice Haters Club Member #128
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