If the series B is the same set up the series A you have to wind up the torsion bars at the front end and this should raise up the front.Whilst at the rear you will have to invest in a " body lift kit ". This consists of extended shackles,bolts,etc.
have a look at the frontera Owners Group website and see if there is a thread on it.
the most you will get is at the most 2 inches all round.