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Author *Topic: first gen sway bar sizes....  (Read 4516 times)
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Euro(4) AWeb80(3) pat(2) GutlessSupreme(2) manicmechanic(2) mfewtrail(2)
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AWeb80
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« on: April 13, 2007, 08:58:40 PM »

lets get this outta the way and make sticky...i can't remember which cars had what...

what cars and susp RPO's had what sway bars front and rear?

i've heard that the all B4U GP's are FE3 (mine was) ...i've heard that the only w's to get the front 34 mm bar are the 3.4 cars....


anyone got final info on all bar sizes and what cars got what and RPO spec?
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« Reply #1 on: April 14, 2007, 10:58:47 AM »

I thought the Euro's had the 34mm
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« Reply #2 on: April 14, 2007, 11:57:07 AM »

Only 3.4 Euro's afaik.
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« Reply #3 on: April 14, 2007, 08:34:39 PM »

Quote from: "neversatisfied"
Only 3.4 Euro's afaik.


ooh ok.  I thought I read somewhere that the Euro package had the 34mm one.  Maybe it was the Euro 3.4
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« Reply #4 on: April 14, 2007, 08:54:54 PM »

http://www.w-body.com/upgrades/suspension-swaybars.html

"If your car has the 3.4L DOHC V6, 3800 V6, or is a 1991-96 Grand Prix with FE3, then you already have the largest front sway bar available from GM"
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« Reply #5 on: April 14, 2007, 10:50:36 PM »

To be quite honest, I am not sure just how accurate the w-body.com "database" is...I've noticed a few things wrong.
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« Reply #6 on: April 14, 2007, 11:18:18 PM »

Search the W-body board. People have confirmed that they had 34mm sway bars on their B4U'd 3100 powered GP's.

I know for a fact my '93 SE(FE1 originally) had a 28mm front bar stock and the small rear bar(I've never measured the rear, but it appeared to be 12mm or so...I'll dig it out of storage tomorrow and look). My '90 TGP has a 30mm bar up front like the article above states..and once again, I haven't measured the rear on that one either....but I will tomorrow. I'll also measure the bars on some Euro's at the junkyard to see what they have, there are plenty of 3.1 Euros there...
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« Reply #7 on: April 15, 2007, 11:26:54 AM »

not all B4U cars got the large bar.  I have seen SEVERAL at the yard that had the middle bar (when I was looking for a front bar for my 1988 Cutlass Supreme).

Once you get into the older years, it is hard to find.

Also, not all cars came with a rear bar.  My 1988 was one of them.

Last thing, sometimes the RPO code does not mean anything.  My pink car has the large REAR bar, but it is an SE sedan with the 3100.  RPO code is FE1.

Thing that most people seem to forget is that despite GM wanting to SIMPLIFY things, people would still go in there and PICK and CHOOSE their options.  

I have seen Cutlass Supreme SL's (1988-1991) coupes that had the full international INTERIO, but a BASE exterior (even down to the 14 inch wheels).  I have also seen 1988-1991 Cutlass Supreme SL's with a complete international EXTERIOR, but had a BASE interior.  Suprised me to see an international with crank windows, manual locks, and a bench seat.

Same applies to the suspensions.  Some people would want something, but the dealer would cut corners to save money.  Not all cars came equipped the same way.  If they did, there would be a LOT less upgrading going on out there.
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« Reply #8 on: April 15, 2007, 12:34:22 PM »

i have a 3.1 euro bar sitting up the street by the dumpster i can measure.
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« Reply #9 on: April 16, 2007, 08:12:46 AM »

I thought since the Euro's had the FE3/F41 codes that they got the 34mm
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« Reply #10 on: April 16, 2007, 04:59:12 PM »

the bar is most definitely not 34mm.  didnt have a caliper to measure but i know what the 34mm bar looks like.  it is off a 91 euro 3.1
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« Reply #11 on: April 16, 2007, 05:42:11 PM »

common misconception is that FE3 means the 34mm bar.

There are 2 smaller bars.  the FE1 is HOLLOW, but the FE3 is SOLID.

Look at the end of the bar at the wheel.  if it is HOLLOW, then it is the LOW bar.

If it has a small dip at the end, but it is solid, then it is an FE3 bar.  

That solid bar is what went in the FE3 cars with the 2.8/3.1/3100

The 34mm bar was only used in the cars with the HEAVY engine (3.4 DOHC, and 3800)
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« Reply #12 on: April 16, 2007, 06:33:43 PM »

i pulled a front sway bar outta a 91-93 Z34 and it is hollow.....?
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« Reply #13 on: April 16, 2007, 07:08:33 PM »

Quote from: "AWeb80"
i pulled a front sway bar outta a 91-93 Z34 and it is hollow.....?


x2 my 34mm bar is hollow.

my TGP's stock 30mm? is solid.
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« Reply #14 on: April 16, 2007, 07:49:11 PM »

yeah.  The 34mm is HOLLOW to save weight.
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