1. 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
Originally Posted by pjh4159
I took advantage of an empty VicRoads certified weigh bridge this weekend with our TVan on behind a 110 Defender.
It produced an interesting result given this discussion with the last figures Ive supplied.
I run no weight distribution hitch and on coil springs all around. It would be interesting to do a similar test on a vehicle with air bag suspension and one with a weight distribution hitch.

Defender with van attached...
Front axle -120
Rear axle- 194
GVM. - 314
Van axle - 110
GCVM -424

Van only...
Axle. - 110
Hitch. - 016
GTM -126

Defender only...
Front axle - 132
Rear axle. - 166
GVM -298

The variation on the 110 with the trailer on...
Front axle - Decrease of 012
Rear axle. - Increase of 028

2. That T-van is quite nose heavy given its mass.

3. Originally Posted by Tombie
That T-van is quite nose heavy given its mass.
They all are and its often discussed on the Track forum.

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Originally Posted by alien
I took advantage of an empty VicRoads certified weigh bridge this weekend with our TVan on behind a 110 Defender.
It produced an interesting result given this discussion with the last figures Ive supplied.
I run no weight distribution hitch and on coil springs all around. It would be interesting to do a similar test on a vehicle with air bag suspension and one with a weight distribution hitch.

Defender with van attached...
Front axle -120
Rear axle- 194
GVM. - 314
Van axle - 110
GCVM -424

Van only...
Axle. - 110
Hitch. - 016
GTM -126

Defender only...
Front axle - 132
Rear axle. - 166
GVM -298

The variation on the 110 with the trailer on...
Front axle - Decrease of 012
Rear axle. - Increase of 028
Im a fan of weigh bridges and am a regular.

Are the number right

Van TBW is 160kg but it has increased the rear axle weight by 280kg

5. Originally Posted by W&KO
Im a fan of weigh bridges and am a regular.

Are the number right

Van TBW is 160kg but it has increased the rear axle weight by 280kg
Using a weigh bridge is a daily multiple occurrence for me at work so happy Ive recorded correct numbers.

Ive been over the figures a few times and double checked then with another person too.

Yes, the rear suspension is increased by more than just the Tow Ball Weight.

6. Originally Posted by W&KO
Im a fan of weigh bridges and am a regular.

Are the number right

Van TBW is 160kg but it has increased the rear axle weight by 280kg
That's because the TBW is behind the rear axle and it unloads weight from the front axle onto the rear axle.

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Originally Posted by Slunnie
That's because the TBW is behind the rear axle and it unloads weight from the front axle onto the rear axle.
Got it now

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