Outer Limits 4x4 Board

Just wondering wat size shackles are needed 4 rears up front and can u
get away with out usein a droped crossmember

You need 2" lifted shackles. Better off putting a dropped front cross member in to keep castor correct.

Dropped cross member causes the springs to bend backwards more and that's bad. It also means you need banana shackles or to modify your body mount to clear. 2 inch shackles with standard cross member and castor wedges means no welding and easier to undo if legalities are a trouble