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Is this that Genuine Toyota Supra limited slip with genuine Yota special 488 gears? Or is it aftermarket 488 gears with a Tru-trac or TRD LSD?

Came out of the rear of a 92 4Runner... all genuine Toyota. It's my truck and I'm not going to be happy if there is damage. <img src="/forums/images/graemlins/angry.gif" alt="" />

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Sounds like the nut was not "staked" after torqueing it to spec. You are supposed to use a punch to deform the lip of the nut into the grovve in the pinion shaft that you mentioned.

I'm not sure if he did that or not when putting it in... <img src="/forums/images/graemlins/zombie.gif" alt="" />