Tow Pro: Use of load-levelling bars with air-bag suspension

I will be towing a 2400kg van (dual axle) with a Prado Kakadu with rear air-bag self levelling suspension. It has been suggested that I should use load levelling bars for additional safety (steering and braking) but there seems conflicting information on whether load levelling bars should be used with such suspension. Would appreciate your comment. Thanks

Bruce, QLD