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Old 03-03-2009, 06:25 AM
  #13  
Zerodefect
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Thicker rear diff fluid can increase and decrease rear tractio depending on your definition of "rear traction". Thats why different car co. instructions can't agree on that.

Thicker fluid will prevent one of the tires from spinning more than the other. This gives the car more forward traction. But it can take away sidways traction because it'll spin both tires and lose sidebite.

Thinner fluid will have more sidebite because only one tire will spin while the other will still have good grip, so the car won't fishtail on power as much but the tire with traction won't have any power going to it so too thin will hurt accel.

It takes forever to master the rear. Just play with it and see what you like. Its preference. The center and front diff are simpler to deal with.

I'd try lighter center diff fluid in you car. 555,753,754,755,752,553.
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