you can always set it up 0* and add shims later to adjust pinion once all is back together. biggest thing is to keep in mind the rotational torque on the rear axle, spring wrap stuff, and if were to tilt to high you can risk the oil slinger not working adequately. mine was setup for 6.5" lift without a sye so had setup per those specs. you have some room for error if your planning on sye and carden driveshaft.