Menu toggle

Fitting ALuminium rear trailing arms

Jonny944CS

Jonny944CS

New member
Hello,
I plan to replace the rather sorry looking steel arms from my '84 car whilst fitting 25.5 torsion bars.
Has anyone out there done it?
Are the Alu arms actually any lighter or is the main benefit stiffness?
Do I need a different parking break assembly / wheel spacer?
I understand I need to find some pre 87 offset change arms, but from the pic I have seen the Alu arms don't seem to have the bump rubber incorporated into them.....
[&:]
 
I've never really seen the steel arms, but the bump stop is inside the shock absorber body on the alloy arm cars hence not visible.

At a guess (and I stress it is a guess) provided you get the pre-ABS offset type they would go straight on. Stiffness will be the main benefit; I doubt they will be much if at all lighter.
 
Ah yes!
That makes sense, thanks Fen.
My dampers have no such bump stops.
The steel arms (that started their life in the back of a 1303 Beetle) have a large rubber bumpstop pushed ito them that bottoms out on a shaped part of the chassis just outboard of the top mount for the torsion bar tube blade.


 
You must log in or register to reply here.

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Porsche
Lockton
Pirelli
Officially approved
Oracle Finance
WEX Esso
Collecting Cars
Archant Dialogue
Back
Top