Thanks all for the input,iv went with teras gas shocks, feels a lot tighter and stays flatter on roundabouts,going to shift a car wi the transporter,so hope it dose not start floating after half an hour o driving. Thats the test ,then off for a weeks fishing wi the caravan..
(I know most people use a rod ) Any way the new shocks come with 4 metal washers to go round the rubber bits ,cant get 4 on so just put 2,one top one bottom ,once the rubber bits compress a bit ,might fit the rest
all good now.....
thanks again..