More Drop Link Mount Confusion

[KerryM]

I recently purchased a 1978 sc targa project car. Among a long list of issues......

The right side end of the sway bar (looks like a stock type 2 bar) is bolted to a drop link that bolts into the swing arm. Cool.

The left side end is not connected to a drop link. The issue is that the left side swing arm has a ball mount for the drop link that looks like it is welded in.

How did I end up with a bolt mount on one side and a ball mount on the other? Was the left side swing arm replaced at some point with an older version? Any suggestions on how to correct? I would like to stay as "stock" as reasonable. Thanks

[KerryM]

Mods....Could you move this thread to the Porsche 911 Technical Forum where it belongs? Sorry for the noob mistake.

[boyt911sc]

Kerry,

Post some pictures and you'll get better responses. The driver side trailing in your car has been replaced with the older trailing arm from a '77 or earlier. There are identifying part numbers on the trailing arm and cross reference it. It is not easy or simply to remove the ball post on the older TA. Consider buying one to replace the older TA you have at the driver side.

Tony

[KerryM]

Thanks for your advice Tony.

Here is the passenger side with drop link connected:



Here is the driver side missing the drop link:

[JFairman]

The easist and in my opinion best way to correct this is buy a set of Tarett adjustable length drop links for your car. They have spherical bearings instead of rubber bushings and they are adjustable in length and position of the ends.
Pelican Parts - European Automotive Parts and Accessories - Porsche • BMW • Mercedes • Volkswagen • Audi • Saab • Volvo • MINI
With the spherical bearing rod ends instead instead of rubber bushings that compress a little your car will have a tiny bit less body lean in corners with these.
They attach to the sway bar ends the same way and the other end attaches at the spring plate camber adjustment bolts instead of the trailing arms with longer bolts and new camber eccentrics so you won't be using the mismatched ones you have now.

Installing them won't change camber because you don't have to loosen any of the other bolts that attach the spring plates to the trailing arms when installing them.

Good luck with it and here's a generic picture of them.

[KerryM]

Thank you for your sound advice.

Are there any other physical/geometry differences between the pre-1978 trailing arms and the post-1978 trailing arms other than this attachment point that I need to be concerned about?