Elddis Affinity 550 towing making me sea sick

On paper the weights should match and presumably you've experimented by loading the van in different ways and ensured you haven't exceeded your payload limit.

Have you got shock absorbers on the caravan and have you had the wheels balanced? Both might help with the problem as also might loading the towball to the max 100kg.

Hello Kevin. Up until July last year I had a Kuga 163BHP AWD auto towing an Elddis Crusader Aurora which had MTPLM of 1520Kg..

This was my 2nd Kuga, which I think is a great tow car. One critical thing is car tyre pressures.

Towing at max PSI of 41 on rear PLUS 3PSI. The fronts I put at max PSI for fully loaded car. These figures are in the car users manual, including the +3psi.

Like you, nose weight about 85/87Kg. Never experienced any trouble with van controlling car. Very stable except behind car transporters. Kept well back until I could safely pass quickly.

Hope that helps.

John E

I tow with a Kuga. A great tow car. My nosweight tends to be well up near the 100kg limit. Do you achieve 85kg by placing heavier items near the rear of the van? This world induce more of a rocking movement from the van. I had shock absorbers fitted to my van and also have the tyres on the car and van at the maximum.

Could it be the Alko hitch itself. Does it move in and out very easily as may need a couple of pumps with a grease gun to give more resistance on the for and aft movement. 

 ... I understood from the OP that the hitch was OK when he said ... and no fault was found with tow shock absorber, 🤷‍♂️