more splines is an increase in strength.....
In the realm of the Toyota gear drive transfer case, it is the increase in minimum cross-sectional diameter of the 23-spline input which yields it's increase in strength
it will not directly correlate to traction of the tires being it is not a locker or a tire itself, but by allowing the slower speeds, there is less likelyhood of stalling out and breaking the traction you do have.... more often than not, its that little momentum you have that will get you over that obstacle
Think of it as trying to move across a frozen lake. If you get set in a sprinters position, and try to blast off with all your might, your increase in feet velocity will get you no where fast. But it is the man who moves slowly and carefully about the icy surface who may reach his final destination.
It is all about static friction. Higher acceleration between two points will increase the likely hood of breaking static friction, at which point kinetic friction results. And since kinetic friction has a lower coefficient of friction than compared to it's static counterpart, forward progress is lost in the process.
By decreasing your vehicles wheel speed, you increase the odds of maintaining that static frictional connection between your tire and the ground, thereby providing a means for your vehicle to obtain forward progress.
Go Slow or Go Home
GA Runner,
Is that transfer case picture above taken from your 4Runner in your avatar? If so, your 4Runner must be powered by a 3.0-liter 6-cylinder. Is your truck equipped with an Automatic or a Manual transmission?
