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As for checking for a heavy duty camber kit im not exactly sure..
I know with mine its the one thats square and you can putt the tow-ball section out.
I recon any mechanic should be able to tell you if its HD or not.
And im pretty sure the HD ones come with a camber kit standard as when the car will be towing with the greater wait it will be sitting low for an extended time andwith more pressure on the tyres.
Good luck with it
Yer thats true i do have air shockies, theres a little nozzle on the back where i can pump them up with a pump but are you shore they dont come with camber kits, because when there a 2 tonne boat dragging on the ass of your commodore, wouldnt it tend to give some negative camber?Heavy duty towbars (2100kgs) do not come with camber kits......
Heavy duty towbars usually have air (pump up) shock absorbers....