upgrading springs and sways to SSEi
 

I was wondering if you guys could help me out with the specs to make sure I get all the right parts.

I can get all the rear parts from one person and all the front from another. (different end collisions) How do I make sure I get matching parts? For example: spring rates the same level.?

I know the front SSEi sway was 32mm and rear was 22mm(I think, maybe 21)

Are there frame mounts for the sways on the front and rear? (I know there are endlinks but those will be energy suspension. I thought I recalled hearing that I have to get the stock sway bar frame mounts or similar. Am I correct? )

How do I make sure I get a matching spring set? what should I have them measure?

Thanks in advance :D

ya as long is you look at the code in the trunk if you can find it you should be fine....if not 100% of the SSEI's will have he correct sways.

i would recommend getting the springs off of the same car. there are 5 different spring rates for each RPO code

That is what I thought. Is there any way to tell if they are the same spring rate?

Does it help to say that the rear sways and springs are from a 97 40th SSEi?

the fronts are from a 98 SSEi.


is measuring the spring diameter a sure way of telling what springs they are?? Are they the same dia. front and rear?

There are 5 different spring rates per code, and it's GENERALLY manifested in spring diameter, but you need to measure VERY carefully, preferably with a digital micrometer.

My fronts and rears are different, but are the thickest I've heard of on this forum so far. I measured them drunk one night for jr's3800, but can't find the topic. I think they were 15.5 front and 15.0 rear?

Can anyone find the post?

And there are two brackets to the frame/body for EACH swaybar. You need them. From the donor car.

I believe that we said you front springs were 15.8 or 15.9 as they were very close to F41 spec... Closest I have seen yet... The rears were 15.0mm

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I gotta find that, or go measure it again.

Hey Bill, didnt we get into a big discussion about this with Josh? I can't remember what you said though :duh:

Ummmm....we had greasy fingers and were tanking beers down. Car is in a good spot to re-measure, so I'll bring my calipers and a micrometer home tonight.

dont forget. I want to know


:D

Just make sure you get the correct centerlinks for the new bar. Older ones WILL NOT work as it sounds like you already understand.

Luckily I got mine from a member, so I had all the parts I needed. But yes both anti-sway bars (Front and rear) have 2 centerlinks.

Sh**.... I may be wrong.... Bill I think it was 16.0mm dead on... And the rears were between 15.0-15.2mm... Yeah we need a remeasure ;)

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I'll re-measure today if I have time. Got a fun night scheduled with a dragster and 6 fuel injectors.

I measured my springs and swaybars again.

Front spring diameter: 16.0 mm
Rear spring diameter: 15.0 mm

Front swaybar diameter: 32.0 mm
Rear swaybar diameter 21.0 mm

Willwren-do those numbers apply for 96-99 also? I'm assuming you have the stiffer of the spring rates.?.

is every part of the spring the same size? so in therory it shouldn't matter where the measurement is taken?

what year and suspension model (RPO) are the largest springs and sways found on?

FE2 and or F41<--- in the 92-99 years this was used in 92-93... I don't think we have seen a 94 yet that had the F41...

Willwren pretty much has the closest to an F41 set up...

Both the F41 and FE2 use the 32mm front sway bar and the 21mm rear sway bar..

The F41 had ever so slightly firmer springs...

Problem though is that there are several spring rates for each code group... FE2 has several, and F41 has several... Sometimes FE2 and F41 springs are listed together...

There is also an FE3<--- This was not used for pontiac...( I think )

If you can get springs at the measurements that Willwren has listed you should have a good riding and handling car...

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This is good to know. I will borrow my roommates digital micrometer this weekend and measure both of my bonnevilles saturday.

I would love to know if there is a diffrence between the 2 or your cars... I'm thinking that they should be about identical... But I guess we'll find out... Either way its great info.. ;)

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