Split Torque Tube Rebuild

[barnwerks]

I am a little concerned since I will be pushing into the high 400s that the TT will twist and pop those welds, well see I guess.

I'll suggest that the torque tube is actually not loaded in torsion but rather in bending. It is a moment arm, countering the axle rotation, so will be bending much like a beam, but upward (opposite of a conventional beam). The slit opens when the bottom of the tube (beam) is loaded in compression. For a great example of this force, watch the body movement of a top fuel dragster under acceleration.

[cda951]

Are you doing anything to pin the front bearing in place, or just hoping the welds will do the job?

[Latitude48]

Hi @Bergerac ,

Any updates on your progress? I am now faced with the prospect of attempting to rebuild my 944S2 cabriolet split torque tube or attempting to locate a good solid version and hope the vibrations aren't too bad. This car is a super smooth cruiser with zero pretensions for performance use, I have a modified 951 for that purpose.

Thank you!

In 2021 I purchased a new non-split Center Tube, 944-421-012-02, from Sunset Porsche Parts and had it installed locally. Glad I got it when I did as it's a discontinued part now. I haven't noticed any additional vibration in my S2, so if you can find a good non-split tube, I'd opt for that.

[Bergerac]

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Good luck getting one from Porsche, that quote was in Australian dollars, so approx US$2900 for an exchange unit

Are you doing anything to pin the front bearing in place, or just hoping the welds will do the job?

I honestly think any attempt to pin it is more likely to misalign it than allowing it to settle into the TT where it needs to

[hoffmanntt944]

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[hoffmanntt944]

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