Adding a rear Sway on 68 without one

[rvanderpyl]

I'm sure I saw a thread on this but I cannot find it.

My 68 has no rear sway bar, and appears to have no provision for one. Welt has the adapters that bolt around the torsion bar housing, but how do you attach the drop links to the trailing arm? Anyone have a SWB arm with the sway bar attachment points?

[304065]

Check out 901 331 571 02, it's a "bolt for subsequent installation." My guess is the rear ARB was offered as an option that could be retrofitted to the earlier cars, probably by welding that pin to the steel trailing arm.

If it were my own car and originality not an issue (which it's not unless your car was an S with the bar on the COA) I'd investigate the Smart Racing option which attaches to the trailing arm. Also find a way to adapt the WEVO mounts, which are intended for 72-, so you would need to build up the area with some angle iron to attach them. A lot of measuring and welding.

Why do you want more rear bar? Are you trying to shift weight to the comparatively lightly loaded outside REAR tire from an overloaded outside FRONT? This is the opposite of what usually is required. I would suggest you get a BIG front bar and start with that before adding the rear.

[rvanderpyl]

Well as I currently have the entire rear end apart to rebuild the suspension I figured this was the best time to do something about adding the bits required so I don't have to dissasemble again later. Besides, if Porsche thought a rear sway bar was a good idea on the S/L models I figured it couldn't hurt. Especially if I replace the stock front toothpick with something a little meatier

[MikeDL]

Robert -

I'm restoring a '68 T track car with a rear sway bar (and a stout front bar).

This picture (the bar is removed at the moment) shows where the sway link attaches to the trailing arm.

[rvanderpyl]

Thanks thats perfect. Any pictures of the sway bar attachments to the body/torsion tube?

[MikeDL]

You can see a bit of it (u-bolted to the torsion tube) to the right of the attach point there. Do you want a picture of a particular angle on the mount?

[rvanderpyl]

No I see it now. Is that an aftermarket mount? Kind of looks like the Weltmeister ones How is the one on the control arm attached, welded?

[Jim2]

Robert, I have a pair of these swaybar mounts which bolt to the torsion bar tube along with some shackles and bushings. Also a swaybar which may be of use. If your interested we could negotiate a price, but I've been known to cave for a case of beer.

PM me if you want 'em, I'm in Calgary.

[911pcars]

Robert,
I hope you're not confused by the way in which the factory and aftermarket sway bars mount in the chassis. While the chassis mounting points are basically the same (except for WM's optional U-bolt adapter on the torsion bar tube), most aftermarket SB drop links mount on the spring plate. The factory SB drop links mount onto the control arm. Early 911s (up to 76-77) use a ball connection on the control arm (steel or alloy arm).

If you want to install a factory bar, you must use the ball attachment on the control arm. These can be purchased from PAG and welded in place (steel arm). Not sure if the SWB 911s sway bars are any difference from the LWB versions. I haven't heard of any differences.

Sherwood

[rvanderpyl]

Thanks Jim, I actually ordered the WEVO RARB consoles and am going to adapt them. You going to the PCA meeting/autocross Monday the 14th? I am trying to get all the Pelican Calgarians out so we can meet.

911P I have a set of later control arms here so I can see what the factory atachment looks like, in fact I was thinking of just cutting the cross piece it is weleded to, off, and welding it in the appropriate place on my SWB arms. But my sway bars are Weltmeister aftermarket and they don;t seem to be setup for a ball socket end, looks more like they expect a U-tab?

So anyone have a picture of a aftermarket attachment to the spring plate?