In the last week I have installed the RE bb on a friends jeep(05)and We installed the Rustys 2'' susp. lift on my jeep(97)They both went in really easy(about 4hrs).I figured my TJ being older needed new springs-now Im really glad that I did.It rides really smooth and gave me the perfect height-My buddy says his shocks are a little stiff.for less than $100 more I got all new suspension,and Rusty's was easy to deal with and my stuff was here in 4 days.They also come with the front two bar pins already installed-always a plus.-my .2..