Pickup truck tow vehicle stability tests

valhalla360 wrote:

RinconVTR wrote:
Take the stability of 2 rear tires and multiply by two...give or take.

OP, am we missing something? Is there a hidden question here?

Wow, not even close to reality. By this logic is we fit the entire length of the axle with tires (say 8 tires) it will be 8 times as stable (it's not).

The answer is yes, dually's are more stable but as long as you are within weight ratings, there is no safety issue. SRW trucks don't fall over because they are missing the training wheels. You would be very hard pressed to document a situation where a SRW would roll but a dually would stay upright while towing.

I suggest you start watching semi's. You will notice a great many are going singles (a little difference as the outside width is held steady). If they were falling over left and right, trucking companies wouldn't use them. That is about as objective as you can get on the subject.

The reason to get dually's is because you need the extra load capacity.

Question was about stability...not load...not safety...stay on topic. You answered the question yourself...but yet you go on.

If you look at the trucks converting from dual to single tires, they are not carrying the highest loads and the single tire is VERY wide. VERY WIDE! Now why would they do that? Hmmmm

Also stability while towing...IMO...does not mean resistance to tip over. Roller over "stability" I don't believe was the point of discussion here, but if it was, I'd simply take measure. The wider version likely wins. And is that not the dually?