suspension

DW, can you give me a few more details as to why the engineer advised against the Air Bags? I fail to see how they can act as a fulcrum unless they are over inflated maybe. The weight is still equally distributed onto the springs with the air bags acting as a cushion between the chassis and the springs. I have been using them for some time now in both towing and off road use and am very impressed with them.

Kevin

The reason against the airbags is that the weight is taken by the airbag and not the whole of the springs. This then only allows the rear part of the spring to function with the airbag supporting the part in front of the axle. Obviously a coil spring vehicle would not have that problem as they are designed to take the load over the axle. The engineer has told me I am not the first to have this problem.

I can assure you that the first time the airbag may have been over inflated and then the second time I ensured that the air pressure was 1/3 of the previous time. The result was that both times I had some distortion of the rearward part of the chassis. I do have a heavy ball weight with the Kimberley Karavan even with the extended pull.

If I was only ever carrying a tray load I would not hesitate to use them but I think the Aussie Super Springs are also doing a better job.

Cheers
Duncan

Injected
I am also looking at upgrading my D40 suspension. Am carrying alloy bullbar, 150 litre LRfuel tank, fibreglass canopy and 30 litre LPG tank for diesel/gas convertor - a fair bit of extra weight before any other load. Will be towing 13' van as well on a trip across the top of Oz later in the year. Do you think the OME package you had fitted would suit mine? Did you check out any other packages? About what cost am I looking at?