ASX noisy over bumps
 

My ASX is very noisy over bumps. It sounds like a really rusty bed spring. I've had it up on the ramp at two garages and one replaced some bushes (No change), and one said they couldn't find anything. At the Mot there was an observation of a slight oil leak on the right front shock absorber. It's hard to say if the ride is worse but I feel it's getting wallow'y and skitter'y if I am keeping the power on round a bend. Any ideas?