Rough Country 50-7907 NP231 Slip Yoke Eliminator
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Jeep model NP231 transfer cases have one glaring weak point. They use a slip yoke on the rear output shaft of the transfer case instead of having a fixed yoke and a drive shaft with slip splines.\
NP231 Slip Yoke Eliminator;
Please review Specifications and the detailed fitment table for notes and exceptions.