The most likely source of the vibration - as you didn't have it before getting new tires....is a bad balancing job, or a bad ply in a new tire, etc.
Take it back, again, and have them also rebalance the tires.
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- TJ
2001 Xterra '03 VG33, SE 5 spd, 305/70/16's, Revolvers, UBSkidderz, Doubled AAL's, 3"SL/2"BL, winch/bumpers, skids, sliders, OBA, Snorkel, pine stripes....
Friends don't let friends drive stock.
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