Just picked up 06 Duramax last night... Jay was a huge help in finalizing my deal... Crew Cab 4x4 --- I'm thinking 6" lift and am looking for suggestions.... Many thanks... What is the best.. my 97 z71 had a trailmaster and my 00 z71 had the Rancho.. Never had probs with EITHER, but not sure about the 3/4 ton .. The local dealers are using one from RCD I believe.. never heard of them.. I'm sure this group will come up with the RIGHT answer for me.