Hi, SAFETY FIRST HERE, put a wedge under the N/S + OFF/S Front wheels, put the gear in reverse then jack up the N/S wheel & crack the middle with a large rubber hammer or a copper head hammer, try this a few times, if this does not work remove the road wheel & the same again, do not be tempted to insert any WD40 into the drum as this in-turn will go on the linings. if you do not have the hammers listed go steady if you use a lump hammer on the drum as this could crack the casting.