Shoptalkforums.com

Looking to get some clarification.



My rear tire on the passenger side of my IRS bug had way to much toe and camber.

From what I’m gathering the bolts that attach to the spring plate can be loosened and moved to adjust camber and toe?

New to VW’s I searched and got this far just want to make sure I have it right.

Thanks

Schweg

Yes, there are slots in the spring plates allowing some toe changes.

This is a mid-71 and later spring plate and has 3 slots. The earlier spring plates (68 to sometime in 71) had 2 plates and they (and the trailing arms) and an extra slot, that and they were place differently.

Lee
I edited the pix to see if I could see anything but not sure if I could.

What kind of rear grommets and bushings do you have? I have been told that the red poly urethane bushings and grommets are softer so they can become deformed with age and use. I also saw something about a lube to lessen wear but I am not sure about that. The black ones are supposedly better but no facts to prove either statement.

Lee

I’ll get some photos tonight and see what the rubber situation is under there.

That first photo helps clarify a ton.

Maybe this weekend I’ll get some time to jack things up and loosen re adjust and re tighten. I’ll also see what the rubber looks like.

Also how do the slots effect camber? All I have seen is that it’s minimal. Do you think I’ll be able to adjust what I have away?

Schweg

IRS goes through camber and toe changes as the ride height changes. http://www.vw-resource.com/rearaxle.html

First step is to replace the spring plate bushings if they are original. They sag/compress and that causes the camber to also sag. Not a bad idea to do the IRS arm pivot bushings too.

I flipped the tear A arms to increase the camber, as when running low for circuit racing there is too much negative camber and the inner tyre edges overheat, but on a baha running high enough you should not need this drastic tweak, just replacing all the bushes as said should do the cure.

Thanks for all the responses! I’m going to start getting some parts together to get it back to normal. Also this makes me realize I have a ton to learn about VW suspension!