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It depends how big you want to go. If you just want level, run a 1.5" perch. I recommend RPG, but there are other good options. If you want to go bigger, run the 2.25" perch, and add .75" spacer in the rear. I am currently running 2.25" perch collar up front, and 2" coil spacer in the rear to help compensate for sag from my rear recovery rack.
