spring plate adjustment

yeuporsch · 10-27-2003, 01:48 PM

I need to raise the rear of my '72 about 1/2 cm. Is this possible to do without removing the torsion bar? I don't have adjustable spring plate. Maybe a later project. Can anybody post a picture of which bolt to turn, and which way, clockwise or counter clock- wise? A description would be fine too.

John

jeff m · 10-27-2003, 02:00 PM

John
Edit your post because "spring plate adjustment" sounds like a CIS post.
Maybe add "suspension" to it, that'll get you the right people.
Jeff

Rot 911 · 10-27-2003, 02:00 PM

John, as you stated your 911 does not have adjustable spring plates. Only way to raise it is by adjusting the torsion bars and to do that you have to pull them part of the way out.

CHILI · CHILI's Garage

I don't think you can raise it without re-indexing the T-bars, if you don't have the adjustable spring plates. If you end up doing it, I would sugest changing to the later model springplates at the same time. I just did this about two weeks ago. I also cut off the old bushings and put on new Netrix bushings. What a difference! Plus, the spring plates save you from having to re-index when you need to make minor adjustments, as the one you wish to do.

And, they look cool!
I'm going to post some pics when I get time.

Superman · 10-27-2003, 02:09 PM

"Spring plate" is okay, and you can adjust your non-adjustable spring plates. One of the bolts is eccentric. Not eccentric like I am, but eccentric in the sense that it is not straight and symmetrical.

Do a search. I think you loosen a couple of bolts, turn the eccentric one, and Voila!

Chuck Moreland · 10-27-2003, 02:16 PM

Super

The factory adjustable spring plates that you describe were introduced in '76. Earlier plates are non-adjustable and require re-indexing of the tbars.

CHILI · CHILI's Garage

And, Chuck is the MAN! Check my previous thread. I put all new T-bars, springplates, and Netrix bushings on my car, and Chuch answered all my questions!

Thanks again, Chuck! I hope to update my photo gallery with new pics of the lowered, way better lookin' , new and improved 911, very soon.

yeuporsch · 10-28-2003, 08:05 AM

If I go with the adjsustable springplate, it looks like they come with bushing already. Is that correct? I was hoping to save that for a later project and fix the broken sway bar mount and new rear sway bar.

John

Chuck Moreland · 10-28-2003, 08:16 AM

Most people installing factory adjustable spring plates purchase them used. They replace the original bushings which are no doubt trashed at this point.

Sway-away makes aftermarket adjustable spring plates that come with bushings.

I prefer the factory parts.

Rot 911 · 10-28-2003, 08:23 AM

Quote:

Originally posted by Chuck Moreland
Most people installing factory adjustable spring plates purchase them used. They replace the original bushings which are no doubt trashed at this point.
Sway-away makes aftermarket adjustable spring plates that come with bushings.
I prefer the factory parts.

Two things I like about Chuck is that he gives knowlegeable advice and he isn't always trying to hype his own products. However, in the case of rear suspension bushings for the factory spring plates, his product is the one I would be installing. Click on his "Elephant Racing" link to find out more.

Vipergrün · 10-28-2003, 09:26 AM

That stuff is too purdy to install in a car

-B

CHILI · CHILI's Garage

Quote:

Originally posted by Chuck Moreland
Most people installing factory adjustable spring plates purchase them used. They replace the original bushings which are no doubt trashed at this point.

Sway-away makes aftermarket adjustable spring plates that come with bushings.

I prefer the factory parts.

John,

Once again, Chuck is right. I bought my adjustable (stock) sprinplates used from my mechanic. He builds race cars, so they pull them out for monoball etc. I paid $100 for the pair. Bushings were trashed, but I had the Netrix already. Pelican carries them. It's worth the money because you don't have to get it perfect because you can do adjustments when you're done. And trust me, you don't want to be re-indexing more than two times. What a pain. Anyway, I would put a post on the parts forum to see if anybody has any used ones, then I'd go with Netrix. Sorry Chuck, but I'm sure you'd agree, they are more appropriate for street use than yours. But, man, yours look awsome. When I build the AX car....

Plus, John, then you can corner ballance the car later on. WOW! Huge difference. If you end up getting some and need to change the bushings, you can e-mail me if you don't find the info you need by doing a search. I just did it so it's still fresh in my memory. Plus, I can give you a few tips that will save a lot of time and energy.

chad.bowser@northgate.com

yeuporsch · 10-28-2003, 12:24 PM

Why is the factory preferred over the aftermarket sway away adjustable springplate? How can I find good used factory ones?

John

RickM · RickM's Garage

To source used parts do a search on Pelican Classifieds OR place a Wanted To Buy (WTB) ad there.

yeuporsch · 10-28-2003, 12:46 PM

Can someone post a picture? Thanks.

John

Chuck Moreland · 10-28-2003, 01:10 PM

Quote:

Originally posted by CHILI
Sorry Chuck, but I'm sure you'd agree, they are more appropriate for street use than yours. But, man, yours look awsome. When I build the AX car....

Actually, I would suggest neatrix is best for anyone who's objective is maximum comfort, not performance.

However, many of us want tight, responsive, street-performance setups (or track setups) and the PolyBronze bearings are the best choice in that case.

Numerous PolyBronze customers have posted their experience in Pelican threads. If I can summerize, the common theme is overwhelmingly "I thought they would be harsh, they are not".

Other factors impact ride quality much more than PolyBronze bearings; choice of torsion bars, shocks, and tire profile all have a greater impact.

CHILI · CHILI's Garage

Here's the pics I used when working with them. From another thread. Man, those thinks look nice!!!!!

Spring Plate Reassembly After Plating

Chuck,
I agree.

Some day, when I'm rich and famous, like you, I'm gonna build a Gulf machine like yours. I'll be buyin' all sorts of your stuff!

yeuporsch · 10-28-2003, 01:42 PM

I think my spring plate may be the factory adjustable ones. It has four bolts one can see from the side. It looks like the one in Wayne's 101 book. Is this from a model later than 1972?

Thanks,

John

CHILI · CHILI's Garage

If you see the two big "nuts" like those shown in the second pic in the above link (before they were plated) then you have adjustables already. But, if yours are just one piece of flat metal, then you don't. You will see those in the pic are two pices bolted together. The ends that are sticking up are the ends that you probably use to place your jack stands on. Just to give you perspective. Make sense?

widebody911 · widebody911's Garage

I have Neatrix in my '77. Less than 2 years on them, and they're already toast.