thats it.

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'89 SHAGGY IROC
L98 7r4, all free stuff,T.E.S.,HOOKER CAT BACK,KYB,ACCEL8.8,JET fan sw. etc.
so much to do , so little money

 

Nope, early 3rd gens had smaller bars. It wasn't till 85 that the 36/24mm combo was perfected.

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-Justin-
T-Top '86 5.0L LG4 700R4 WS6
T-Top '92 5.0L TBI 700R4
My '86 Firebird Homepage
The F-body Model Kit Pictoral Archive (updated 9/18/00)

There can be only one!!

 

so anything after 85 has the hollow 36 mm sway bar right?

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'89 SHAGGY IROC
L98 7r4, all free stuff,T.E.S.,HOOKER CAT BACK,KYB,ACCEL8.8,JET fan sw. etc.
so much to do , so little money

 

82-84 WS6 had 32mm front 21mm rear. Usually if stock, a quick glance under the rear will tell you if it's a WS6 or not. The non WS6 cars rear sway bar is a puney 12mm.

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Kenney
82 Trans Am WS7 notchback
83 Trans Am WS6 T-tops
72 Vista Cruiser 455
90 Olds Trofeo
80 K-10 w/snow plow
Painter @ Chevy dealer
GM junkie

 

I got a 36mm on the front of my formula. I can't say that it appears to be hollow. It weight atlease 30lbs. Aftermarket companies make some hollow ones, Maybe later versions were hollow, but in 89 they were solid for sure.

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Michael Graeber

My Garage

1)83 Z-28 T-Top: Full cage, 9" w/ lad.bars, Midwest Engine Tech 406sbc,Strip Dominator, Demon Carb, Phase VI Chevy Bowtie heads, .630" Crower roller set-up, 1 3/4 coated Hookers 3" true dual exhaust th400, fuel cell & still not running

2)89 Formula WS-6 305 TPI Auto For the road: minor motor, more suspension stuff. MODS

 

I've been told the hollow 36mm front bar weighs in at 22lbs. A good way to tell it apart is to look for a small blow hole on the bottom on the bar right next to the end links. That hole goes from one side to the other, I've shoot water threw it with my garden hose.

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1989 Camaro RS LO3 WCT5 0-60' 2.34 1/4 15.8@87mph
http://350.StreetRacing.org
The posi unit breaker.

 

Listed from stiffest to softest, front bars came in the following flavors: 34mm solid bar, 36mm hollow, 34mm hollow, 32mm solid, 30mm solid and 28mm solid. Rear bars, all solid, start with the ultra-rare 25mm bar found only on a few Pontiac Firebirds. Moving from the stiffest to the softest, rear bars were also available in flavors of 24mm, 23mm, 21mm, 18mm and 12mm.


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"Perfection is a trifle dull. It is not the least of life’s ironies that this, which we all aim at, is better not quite achieved."

-W. Somerset Maugham

 

What size is 36mm in inches. i know stupid question, but have calculator around. hehehhe. Im havin a problem gettin bushings for the car without goin to pay 5x at the dealer. Ive got a sway bar that measures 1.480 inches, and i can't find nobody that sells bushings that size. or 1 1/2 for that matter

 

There is 25.4 mm in one inch. so your bar is 1.48 x 25.4 = 37.59 mm. Sounds like you measured it wrong but I would assume you got the 36mm since that was the biggest.

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'89 Formula 383 TPI

 

I will weigh the bar from my '87 tomorrow since it's temporarily off the car. It is definately the 36 mm bar, it's quite a bit fatter than the 32 mm bar on my '98. It didn't seem as heavy as it should so I assume it is hollow.
-Chuck

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87 Formula 350 13.94@96.67
98 Z28 1LE 13.15@107.59
1LE Owners Association