[Mike_G]

My dad works in vauxhalls actully on the axles for combo's

and there all the same!! the combo van models everything butt you can get two diffrent payloads 595kg and 740kg the only thing thats changed on that van is springs.

ano your talking about a berlingo but thought it share that with you.

On the combo I'm sure the 595kg has rear drums and the 740kg has rear discs (well mine does)

I think you are correct regarding the brakes. More weight needs better braking hence most of the small type vans with the bigger weight load have disc brakes all round.