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> Torsion bars
Cvrguy
post Feb 15 2026, 07:06 PM
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Just pulled mine out of my '73 today as I'm replacing the suspension bushings. Both bars are slightly abraded due to the very old bushings deforming (old? I hardly had to heat the retainers in order to get them off!). Replace or not? Mine measure a little over 18mm at the shaft (18.01 and 18.25mm to be precise. The difference may be in the amount of paint on the bars). I've checked the usual sources but no luck as yet. Who might carry them? I really don't want to increase the spring rate with the 20mm ones from Pelican.

If I clean these up, are they useable? Can they be reversed? Does the minor abrasion significantly change the spring rate? Are those from the early 911 of that era an alternative?

While i'm at it, one of the adjuster screws shows signs of starting to split. Replace?Attached Image
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914werke
post Feb 20 2026, 12:50 PM
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QUOTE(Cvrguy @ Feb 20 2026, 10:28 AM) *

When attempted a trial fitting into the adjuster end, They don't fit! Was there a change in the number of teeth on the torsion bars over the model years? The original bars fit fine. ???

The /6 & 911 Use a different spline bar
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mepstein
post Feb 20 2026, 01:26 PM
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QUOTE(914werke @ Feb 20 2026, 01:50 PM) *

QUOTE(Cvrguy @ Feb 20 2026, 10:28 AM) *

When attempted a trial fitting into the adjuster end, They don't fit! Was there a change in the number of teeth on the torsion bars over the model years? The original bars fit fine. ???

The /6 & 911 Use a different spline bar

Yep. If you have 911 torsion bars, they are 1mm larger and one more spline (iirc). Definitely won’t interchange with the 4’s. All 914-4 years used the same bar.
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Cvrguy
post Feb 20 2026, 03:09 PM
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QUOTE(mepstein @ Feb 20 2026, 01:26 PM) *

QUOTE(914werke @ Feb 20 2026, 01:50 PM) *

QUOTE(Cvrguy @ Feb 20 2026, 10:28 AM) *

When attempted a trial fitting into the adjuster end, They don't fit! Was there a change in the number of teeth on the torsion bars over the model years? The original bars fit fine. ???

The /6 & 911 Use a different spline bar

Yep. If you have 911 torsion bars, they are 1mm larger and one more spline (iirc). Definitely won’t interchange with the 4’s. All 914-4 years used the same bar.

Apparently the 914 bars are stamped with a "VW" on one end as well.
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mepstein
post Feb 20 2026, 03:10 PM
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QUOTE(Cvrguy @ Feb 20 2026, 04:09 PM) *

QUOTE(mepstein @ Feb 20 2026, 01:26 PM) *

QUOTE(914werke @ Feb 20 2026, 01:50 PM) *

QUOTE(Cvrguy @ Feb 20 2026, 10:28 AM) *

When attempted a trial fitting into the adjuster end, They don't fit! Was there a change in the number of teeth on the torsion bars over the model years? The original bars fit fine. ???

The /6 & 911 Use a different spline bar

Yep. If you have 911 torsion bars, they are 1mm larger and one more spline (iirc). Definitely won’t interchange with the 4’s. All 914-4 years used the same bar.

Apparently the 914 bars are stamped with a "VW" on one end as well.

Makes sense since the 914-4 was assembled by VW and the six by Porsche.
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Posts in this topic
Cvrguy   Torsion bars   Feb 15 2026, 07:06 PM
Cvrguy   the adjuster screws   Feb 15 2026, 07:08 PM
Superhawk996   Replace Damage like that to torsion bars creates ...   Feb 15 2026, 07:16 PM
jim_hoyland   Where are those bushings located ? Doesn’t ring ...   Feb 15 2026, 07:40 PM
bkrantz   Where are those bushings located ? Doesn’t ring...   Feb 15 2026, 07:58 PM
barefoot   Where are those bushings located ? Doesn’t rin...   Feb 16 2026, 10:18 AM
Cvrguy   [quote name='bkrantz' post='3245327' date='Feb 15...   Feb 16 2026, 11:18 AM
jim_hoyland   Where are those bushings located ? Doesn’t rin...   Feb 16 2026, 04:28 PM
Cvrguy   [quote name='bkrantz' post='3245327' date='Feb 15...   Feb 17 2026, 04:14 PM
Cvrguy   [quote name='bkrantz' post='3245327' date='Feb 1...   Feb 17 2026, 04:16 PM
mepstein   As superhawk said you need to buy new or really go...   Feb 15 2026, 07:55 PM
Superhawk996   The torsion bars do not touch anything (other than...   Feb 17 2026, 04:38 PM
bajafreaks   What is the deciding factor on when to replace the...   Feb 17 2026, 04:49 PM
Superhawk996   What is the deciding factor on when to replace th...   Feb 17 2026, 05:31 PM
Cvrguy   [quote name='bajafreaks' post='3245576' date='Feb...   Feb 20 2026, 12:28 PM
worn   [quote name='bajafreaks' post='3245576' date='Feb...   Feb 22 2026, 09:11 PM
914werke   When attempted a trial fitting into the adjuster ...   Feb 20 2026, 12:50 PM
mepstein   When attempted a trial fitting into the adjuster...   Feb 20 2026, 01:26 PM
Cvrguy   [quote name='914werke' post='3246037' date='Feb 2...   Feb 20 2026, 03:09 PM
mepstein   [quote name='914werke' post='3246037' date='Feb ...   Feb 20 2026, 03:10 PM
Cvrguy   [quote name='914werke' post='3246037' date='Feb 2...   Feb 21 2026, 11:09 AM
PM911   The spring rating of a torsion bar is amongst othe...   Apr 3 2026, 01:05 PM
Ninja   The spring rating of a torsion bar is amongst oth...   Apr 3 2026, 03:16 PM
Superhawk996   It’s also wrong because you don’t increase a t...   Apr 3 2026, 03:27 PM
Ninja   I didn't even think about if the info was corr...   Apr 3 2026, 03:31 PM
Ninja   Got me again!   Apr 3 2026, 03:31 PM


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