The JeePerf/Bilstein Coilover System Convert Bilstein 5100 series adjustable front strut for the WK/XK into a true coilover system. How would you like to be able to use the superior Bilstein 5100 adjustable front strut at OEM height? How would you like to be ready for your future lift whenever you want? How would you like to gain more than 4" of lift easily and when you want to? How would you like to be able to do that conveniently, in your very own garage, at your very own free time, without having to pay extra labor charges to do it? How would you like to be able to build your very own coilover system, conveniently, using your very existing, already paid for, components? What if you want to experiment with different coilovers springs and settings? How about using dual rate springs in your personal coilover system? How would you like to eliminate the mystery and complexity of coilover design by having it all at your own disposal? You now don't have to take off your strut assembly to adjust your front lift height anymore. You also don't have to settle for three preset lift heights anymore. Each Jeep is modified differently so why settle for only three preset lift heights? Now you can custom tailor your front suspension to your liking. Introducing the JeePerf/Bilstein Coilover Conversion system for your WK/XK Jeep You now can use the Bilstein 5100 adjustable struts to build a full coilover system with your choice of OEM style, or 2.5" coilover style springs. As a matter of fact, you can now use the superior Bilstein 5100 shock, at stock, OEM height with no lift at all. Just good quality shock, ready for your future lift plans. Or, you can use this setup for your SuperLift 4" lift, or modified SuperLift 4"+ lift without using the upper strut spacer. You can chose to use 2.5" coilover springs from King, Fox, Eibach, PAC, ... or others. You have full flexibility to do whatever you want, with full JeePerf backing to help when you need it. You will, at some point, want to replace your front struts, so why not, at the very same time, upgrade them using the JeePerf/Bilstein Coilover Conversion System, so you can adjust your front lift any which way you want?