I doubt it. You think there's undue wear and tear put on your synchros by using the clutch only once?

What about pressing that clutch pedal twice as often as it's designed? Do you know what a throwout bearing is? Do you know how it wears out?

With the exception of what TR is referring to with cold shifting, there's no point to double clutching a synchronized transmission.

 

No. But by double clutching they will last even longer because you are requiring less out of them.

Your throwout bearing lasts longer when you double clutch because (1) shifting is just as fast and (2) you're in neutral part of that time with no load on the bearing.

So don't double clutch.

But if you're using your truck as it was intended to be used, you will be double clutching under the conditions I've outlined in a previous post. Or you will get fed up with your driving skills, blame it on something else and settle on an automatic.

 

the throwout bearing is only loaded when you press the clutch... no matter what gear you are in, neutral or other.

The throwout bearing takes the most load while the clutch is in the motion of being pressed since that is the greatest axial force on it.

also, rev matching and floating gears will make your transmission last the longest since there is no wear on either the synchros, or any clutch components. However, miss getting into gear clean and you'll grind the synchros a bit, but that happens with or without a clutch.

 

and every time you press in the clutch, you must also let it out, which is less load on the throwout bearing.

 

thats bad logic

the least load on the throwout bearing is when the clutch is completely out