So the 4" Rough Country Kit I have been istalling is almost finished . I have the front/rear abbout 99% (just have to re check all my torqued nuts and replace a leaf spring bolt) . I have yet to do the transfer case drop step . I'll tackle that tomorrow. I have been reading some posts and have seen a few mention (if you go higher than a 2.5 lift you may need a slip yoke extension) . Is this something that has to be done every time you install a 4" lift ? if so does anyone have a write up on doing it ? Also I checked a few online stores and found a slip yoke extension for 89.99 or a slip yoke eliminator kit for a few hundred . If I need to do this added step which do I need ?