What we're your axle weights?
I will have to follow this up and look a little closer. Still getting over the shock at the moment
On the weighbridge at work Lenny HB i only got the total weight, so unfortunately I can’t answer that question at the moment.If on the limit on the rear you might not gain anything unless you add semi air to the rear approx £2k if 15" wheels tyres will need changing, 16" should be OK, then you can go to 2240kg on the rear.
I will have to follow this up and look a little closer. Still getting over the shock at the moment