Which tires wear out first, front or back?

[jtreber]

There is a sealed clutch pack attached to the pinion of the rear differential. There is a ball and ramp system that is engaged electronically to lock up and release the clutches to provide torque to the rear wheels. There is an AWD relay module that dirwclty controls this clutch. The pcm tells the relay module how to operate the Active Torque Coupeling Clutch (the clutch on the rear differential.)

The system is supposed to be "predictive" in that if the pcm thinks wheel spin is posible up front, it will engage the rear. I forget what the exact parameters are.

Here is a cut away if you like that stuff.

Going by the picture, that's a beefy looking clutch pack.

 

[High on Ethanol]

Pretend you bought a fwd car, that gets better traction than fwd cars do.
I had an Audi that was true AWD and ever since then, I laugh at all other AWD systems.

 

[Auggie]

Just had the tires checked at Discount tire and all were between 4.5 to 5.0. Tech said very even wear?