Well so what will I have to do if I do the shackle lift
Rear --- cut and relocate the spring perches on the housing.
Front --- Cut and turn the knuckle balls in the housing
If you use shackles longer then 4.5 bolt hole to bolt hole in the front and have a single t-case you may get D-shaft bind on full droop on the P. side.
There is more to lifting a rig the bolting on stuff, things have to be reset up. If not you will have an ill handling, vibrating POS that will also be dangerous to drive on the street.
