I have the factory installed LSD in my 06 MCS. We just got our first major snow fall in Minnesota this weekend. If I put one front tire on the hard packed snow and the other on dry pavement and then accelerate hard the tire on the snow will spin. Shouldn't the LSD prevent this? Shouldn't the tire on the dry pavement get the majority of the power and pull the car forward? Do I have a problem with my LSD? Or am I not understanding how the LSD functions?

John

 

It's called LIMITED slip differential so you might just be accelerating too hard (beyond the limit as it were).

I believe it should help in the conditions you describe.

 

Just saying hi to another MN john out there with a MCS!
Jon

 

Think helps not prevents I usually kill the ASC+T on snowy roads and let the LSD find the traction on its own but if I out do the tires or punch it too hard then I managed to defeat the LSD and tires.

 

Your LSD is not perfect. It can't work when there is literally "no traction" such as on an icy surface.

In a recent Motorweek PBS TV segment they reviewed the 2007 Silverado that featured a "Locking" rear differential. They showed several tests of traction using rollers that allowed spinning of the wheel on one side of the rear while going up an incline.

With no locking differential the wheels spin even with 4 wheel drive. When using locking differential in the rear the spinning wheel stops spinning and the traction wheel pulls the truck right up without a hitch.

The video demonstration of each example was pretty convincing.

So to fix your traction problem you need to look at your tires and consider winter studded tires or similar to allow for traction on the ice or snow. If you were spinning your tire using studded snow tires then I guess that is normal for MN and I'm glad I live in Hawaii.

 

Lava gives much better traction


Snow driving can be fun, just make sure there aren't many other cars around cause their brains are burried under the snow and they don't realize that the SUV with more mass has more interta and the same size contact patch withthe ground.

 

Lava is treacherous. Avoid if it is glowing especially in daylight- a bad sign.
And it is very sharp and not nice to rubber sidewalls.

And don't forget to miss the lava pits-

Ouch. Get me out of here. Hint: LSD is not going to help.