I did some more research on it and that's not a 6 link, that's an 82 differential with a bracket on it to mount the toe control link setup from a C4. That bar runs equal to the 1/2 shafts, on their centerline pane. it does not do ANYTHING for camber control, it's supposedly for toe control but since the toe can not be controlled like that, unless you have some kind of sliding setup at the front trailing arm bushing (or a double hinding dog bone setup like the C4) it's useless, won't work and will bind and introduce stress. Either we are not seeing the full picture there or something is designed incorrectly.
Toe is controlled by the shims on the front arm mount and the arc that the 1/2 shaft and the arm/hub assembly move over, the extra link will not add anything, it may look truck but if you have something fixed with 2 points a 4rd point won't control anything unless one of the other 2 is "loose"
I COULD see this work if they have the stock bushing sjust loose in there so it slides over the bolt, no shims. Then you CAN use this to set toe, it will be easier to adjust but the level of toe contol remains the same as stock, because the arm hinges at 1 point you still have the inherent toe control problem present in the C3 suspension.

That car is a german 82 with LS1 done by ACP, the people that also do the brembo brakes and koni coil over setups.


[Modified by Twin_Turbo, 4:29 AM 1/10/2004]

 

Could it be that the person that set up the '82 thought that the toe control rods could act as upper control arms? Without knowing if they removed the C clips from the output yokes we don't know if they are still controling the camber with the shaft or the upper rods.
I don't think that any of the 6 link kits except the Guldstrand will control the toe. They all use the stock trailing arm for that. The only advantage to the 6 link fabbed by Mr. Taylor and others is the ability to adjust the camber and control the trailing arm in the event of a halfshaft failure. Installing a spacer on the center mount for the lower control arms, or using the VB&P center mount, will reduce the amount of camber change.
Halfshaft, or U-joint, failure is a very real problem for anyone drag racing a C3. The upper link of a 6 link will keep the wheel contained in a more or less normal position in the event of a failure as it removes the halfshaft as the upper control arm.

 

I haven't installed the Six-Link in my '80 yet, but I have all of the components to do it this spring when the VanSteel Performance Suspension goes in.

The '80-'82 rear suspension differs very little from the earlier C-3. The main issue is the aluminum batwing does not allow the same method of mounting the upper center link to the chunk. Do a search and you will find many ideas and methods of approach to this. I have decided to put in an upper 2x2 crossmember to attach the upper links to. Norval has an older style and used this same method on his. It is really much easier and more stable to do so IMHO.

It may not be a perfect suspension package but it is definitely an improvement over the OEM halfshaft upper control arm style and removes the constant beating of the carrier from the yokes. As I said do a search, there are many pages of discussion on this topic. Jim