I bought my second tj recently. The man I bought it from didn't want to put lift kit on the jeep but still wanted to lift it so he put it on JK coils. (they sit 2in higher). I am looking to swap back to a TJ suspension. If I buy TJ coils and swap out the ones on my jeep (JK coils) to a set of used TJ coils, will I need to replace anything else? Or should the coils swap be just that simple?