Originally Posted by
dirvine
On another web site, it is claimed that when you put a towball weight on your car (does not matter what the weight is) weight comes off the front of the car and as such more than the tow ball weight is added to the rear axle load. The quote is much like the fulcum on a see saw. What has been quoted is that a ball weight of 350kg means about 500kg is loaded onto the rear axle. I failed physics so I am unsure if this is correct. If this is the case then I question if any car could tow a 3.5T van with a notional ball weight of 350kg. Can any of you gurus here answer my question in simple terms. I dont know how you can accurately guess the tare weight on a rear axle unless you drive over a weigh bridge, so just halving the Tare weight would not give an accurate figure, or so i would deduce as I would think more weight would be biased to the front due to the engine and gearbox being more located to the front of the vehicle.Thanks David
Hi David
if you know your ball weight then this simple calculation will tell you what weight will be added to your rear axle.
To calculate the actual ball weight affect on the rear axle; multiply the ball weight by the (vehicle wheelbase plus the rear overhang) and then divide the answer by the wheelbase.
cheers
David
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