[Durt]

Jason -

That's a hoot! I have a Stage III S-4 tuned by Wicked Motorsports (which I'm sure you're familiar with.) It's nearly as stupid fast as the Cobra.
The CVs have been chewing up boots for the most part. I've been experiencing a lot of shimmy & darting on the freeway - which I initially attributed to the gumball Goodyears following rain grooves & such.
But today, it just let go. No snap, no crackle, no pop. Just a violent pull back & forth covering 3 lanes. Fun.
I nursed it home & put it on jackstands. The right rear tire flopped around like a broken leg - and the inner joint & boot looked like the culprit. I have an appointment to have a suspension guy look at it later this week. He thinks (as I've heard regarding earlier SPFs) that it could be set up wrong.
The only reason I brought up a solid 9" axle is that these 8.8 IRSs are costly to fix and in my case, just seem fragile by nature. Today's episode scared the crap out of me & I don't want to get to a point where I lose confidence in the car.
If I'm going to get in trouble, I want it to be because I'm having fun - not going to the grocery store.