it should be possible to convert but difficult and costly. all things considered it would be much easier and probably cheaper to just trade it in on a 4wd. just my opinion.

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Silver Ice Xterra Xe
4x4 auto 3pk
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2000 XE 4x4, ARB bumper, 33x10.5 KM2, 3" fabtech SL, Skid Row skidplates, Calmini Sliders.