I recently bought an 06 alto and I'm up for M.O.T. in a few days. after having a look underneath my new baby I noticed the seats for the springs sitting on the rear axle are badly rusted. Is it legal/permitted (here in the UK) to weld in metal to strengthen the seats on the axle, as a friend told me that welding subframes and axles is no longer allowed) or is there a prefabricated after market bracket I could buy to weld in place? or (God forbid) do I need a whole new axle?