Trans f/s prog... Wait, not quite

[Plattus1000]

Got a call from my better half yesterday claiming that her X was making grinding metalic noises and shuddering before she pulled off the road. The message in her instrument cluster read "Transmission failsafe prog"

So while she got towed I researched but without being near the rig, it was just to prepare me for the possible mess on our hands.

Our indy (friend who helped us on her truck before and basically did my engine swap in the wagon) told me that the driveshaft to the front diff was bad and needs replacement. Said the teeth on the end were worn to far to grab the gear and that I should look for another shaft.

I'm curious to open up the diff and see if that gear should also be replaced and wondering if anyone has a suggestion for where to get that shaft or a good aftermarket replacement that doesn't break the bank.

Well, 3 months without an issue, I knew it would happen soon. Now she really wants to sell it. I'm trying to see if insurance will total the car and I can keep the engine, it's practically new. Argh BMW!!!