25 Spline Drive Shaft Wobble

[mouldypigeon]

Hi everyone,

I am running the viscous LSD box in my FTO and experiencing a wobble of the shorter 25 spline drive shaft, but the play is only inside the diff itself where it mates with the spline.

Some videos for your time:
https://youtu.be/88r8C7f_kGY
https://youtu.be/JPRb1sbB2V0

The other side is rock solid.

This has done a few track days and there do not seem to be any issues, except a vibration under hard acceleration.

Anyone have experience to tell me this is normal or not normal?

[mouldypigeon]

Swapped the diff over and this problem is solved.

However, begs the question of what was wrong with the original diff. Do they just get worn? It wasn't from a high miler.

[Bennoz]

Those wafer plate sticky diffs do have a life expectancy. They just wear out..

[bjk]

That is some wobble

[slippercream]

Wow, dude - I wonder if that's what I'm experiencing as well. Haven't done a full driveline tear-down yet, but it makes me wonder now.
Good info, thanks. And good luck!