Will not work with adjustable air suspension models. Not recommended for All Wheel Drive models. These trucks are typically between 1" and 3" tail high. Please measure your truck and order the appropriate rear lift height. TRX models will achieve approximately 1" of additional lift. This lift is not recommended for use on the TRX models due to possible CV shaft vibration caused by the additional lift. Instead, consider our 4" lift system for about 5" of lift or replace the TRX struts with standard struts for use with this system.