I just replaced mine when I put on the FSD's, and also put on new OEM coils. I bought the OEM coils and OEM isiolators from an online Mopar discounter for both front lowers and the 4 rears. These are the lowest prices of any I found, including aftermarket ones from Rockauto. Front uppers come with new strut mounts, and I used Monroes.
2006 Overland QDII 5.7 BT catch can, Diablosport Intune, CMR tune by Hemifever tuning, Modern Muscle ported 85mm TB, Apexi super voltage regulator, SRT8 front and rear sway bars, Koni FSD shocks/struts, Cooper discoverer AT3's, Amsoil fluids.