Fitted some 2" blocks and landir 90 Brit part shocks on the back of my 340, undid the arm as said is best and fitted the blocks and shocks. When i lowered it back down, the drivers side sat higher than the passenger side. I looked underneath and the shock is rubbing the axle and tie bar and ever so slightly on the tyre (running corsa 14" steelies) any idea where the shock would be rubbing?

Take the bolt out from the torque arm and push it in from the other end for more clearance