genikz

Anybody know a source? I've searched high and low, but can't find any for sale on the various 928 supplier websites.

I'm finding it hard to swallow that I have to spend nearly $1000 for "rebuilt" control arms and ball joints, just to end up with a stock feel. The rebuild is just new rubber bushings, ball joints and a cleaning; I can do that in my garage. Does anybody manufacture polyurethane or some other non-rubber bushing replacements?

I plan on tracking a '78 928 Euro, and using 275/285 fronts (18x10) and 295/305 rears (18x11) rears.

Maybe I'm spoiled with my 924S, but a new Porsche control arm is $25, and bolt-on ball joint is $14

Imo000

I've bought two sets of urathane bushings, can't remember from where but they are available.

dr bob

I think Carl has competition upper control arms with hard bushings (might be Ampco) that would be your best choice. Urethanes are all over the map as far as durometer and construction, and may or may not be any stiffer than the factory parts anyway. He also has the baljoint rebuilt bits you'll need.

I'm not sure I'd want to go much harder on the bottom bushings, at least not the rear one. While the lowers typically have the biggest impact on geometry variations as they flex, they are also transferring amost all the road impact forces to the frame. Solids there would require very regular inspections for cracking around the mounts.

IcemanG17

waste of $$$$ I think Carl and 928intl both sell harder bushings...but you don't need them....if your factory bushing are in good condition you are fine.....just add the solid bushings for the steering race...I found those helped steering feel quite a bit.....

genikz

Thanks, fellas.

I was worried at first glance that my stock rubber bushings were shot by the looks of them, but they're actually pretty solid when I rock the wheel around as hard as I can.

BTW, I did see Carl's steel upper control arms, but they're listed for late 928s. Not sure they'll work with an early car, but I can't see why not. Maybe the ball joint/spindle mating is different?

It looks like I can get away with just some new ball joints

Cheers,

James Bailey

They are a different length...."BTW, I did see Carl's steel upper control arms, but they're listed for late 928s. Not sure they'll work with an early car, but I can't see why not. Maybe the ball joint/spindle mating is different? " By the way you do realize that the 79 928 will have a hard time beating your spec racer 924 unless you seriously modify the engine.

genikz

Agreed, James. Engine swap will take place...one day.

Thanks for the heads up on the length issue. I have time to cobble a setup together

hacker-pschorr

Before you buy "competition" bushings, read this first:

http://simardracing.com/SuspensionProducts.html


Then contact Mike Simard to setup your car like this:

http://simardracing.com/Suspension.html

genikz

Very slick setup! As I mentioned, I'm going to stick with stock rubber for now, and re-evaluate the bushings down the line. For as little as the car will actually be used in the scheme of things, spending the huge amount I'm sure that setup costs is not in the cards.