Okay to jack by front sway bar?
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Joined: Jan 2009
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From: DE
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Okay to jack by front sway bar?
Seems very thick and solid. Doesn't flex really either. I can't really get my jack to the cross member so I've been doing this.
Joined: Aug 1999
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Okay to jack by front sway bar?
JamesC
Last edited by JamesC; Jan 7, 2011 at 03:08 PM.
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From: East Tennessee
Car: 1992 Z28 Heritage Edition
Engine: L98
Transmission: T56
Axle/Gears: 3.23:1
Re: Okay to jack by front sway bar?
I wouldn't jack it by the bar itself, but you can jack up underneath the mounting point on the frame, although, I wouldn't do it all the time. If the jack doesn't fit, get one that does!
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From: Georgetown TX
Car: Base 91 'bird
Engine: 3.1 v6
Transmission: 4L60
Axle/Gears: 9-bolt 3.27 & PBR
Re: Okay to jack by front sway bar?
If you jack the bar you'll crush the bushing. It may take it a time or two if there's no choice but there's always another way.
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Okay to jack by front sway bar?
If you need the whole front end up? Buy/Make some ramps. Or jack 1 side up, put it on a jackstand, then jack the other side up & put it on a jackstand. If you have a stock Wonder Bar, don't jack it up by that either. It it stronger than the sway bar for jacking, but I still wouldn't do it.
You can jack up the whole rear end, but do it by the pumpkin, not the sway bar.
You can jack up the whole rear end, but do it by the pumpkin, not the sway bar.
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Joined: Aug 1999
Posts: 19,282
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Okay to jack by front sway bar?
I once straightened a stamped steel OE Wonderbar by sticking it between two blocks of wood, then putting a bit of my weight on it. I'd say it's certainly less substantial than, say, a solid 34mm sway bar. At any rate, as has been mentioned, neither is an appropriate jacking point.
JamesC
JamesC
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From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Re: Okay to jack by front sway bar?
You need 2 jacks with a low car often, one just to get the engine cradle up a few inches to jack there, then again when ya wanna take it out.
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From: Oregon
Car: 1991 Z28
Engine: L31-R 350 w/ EBL P4
Transmission: 700R4
Axle/Gears: 2.73
Re: Okay to jack by front sway bar?
I always just up the front of my car by putting the jack under the K-member and then putting two jack stands under the A-frames.
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Re: Okay to jack by front sway bar?
Drive onto some blocks of wood then put the jack under the front crossmember.
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From: DE
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Re: Okay to jack by front sway bar?
Okay thanks for the responses, glad I asked! I wonder if doing it caused any damage.
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Okay to jack by front sway bar?
My solution at home, before lowering.....

I had to add another layer to the bottom, 6' long, to get the tires up on there to keep the nose from hitting anywhere. Yes, my ramps are "kinda heavy".
2" x 12" x various length from 18" to 6'.

I had to add another layer to the bottom, 6' long, to get the tires up on there to keep the nose from hitting anywhere. Yes, my ramps are "kinda heavy".
2" x 12" x various length from 18" to 6'.
Thread Starter
Senior Member

Joined: Jan 2009
Posts: 611
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From: DE
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Re: Okay to jack by front sway bar?
Yeah, simple and easy. Will do from now on. What exactly is a K member? Is that the crossmember?
Thread Starter
Senior Member

Joined: Jan 2009
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From: DE
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Re: Okay to jack by front sway bar?
Thank you sir. Hope to get under my car this weekend to cure that front end popping, read it is possible I am missing bolts in the K member. Will also check the state of my sway bar and everything it connects to. Want to be certain I did not ruin anything.
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Joined: Jul 1999
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Okay to jack by front sway bar?
You are missing bolts in the k-member??? That is what holds your engine, which your transmission is attached to, it it supports the tranny too.
The coil springs press on it, so it supports/locates those.
The a-arms attach to it, so it supports those too.
What bolts are missing???
The coil springs press on it, so it supports/locates those.
The a-arms attach to it, so it supports those too.
What bolts are missing???
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Joined: Aug 2006
Posts: 12,805
Likes: 107
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Okay to jack by front sway bar?
took a k-member out of a 89? TA recently and one bolt on the passengerside was broken, the broken piece didnt fall completely out, it was stuck a little, but more or less it was "missing", its defiantly possible.
Thread Starter
Senior Member

Joined: Jan 2009
Posts: 611
Likes: 2
From: DE
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Senior Member

Joined: Feb 2010
Posts: 695
Likes: 11
From: Oregon
Car: 1991 Z28
Engine: L31-R 350 w/ EBL P4
Transmission: 700R4
Axle/Gears: 2.73
Re: Okay to jack by front sway bar?
Thread Starter
Senior Member

Joined: Jan 2009
Posts: 611
Likes: 2
From: DE
Car: 1990 Firebird Formula
Engine: LB9 - 5.0 TPI
Transmission: 700R4
Axle/Gears: 2.73, LSD
Re: Okay to jack by front sway bar?
Sway bar looks fine. Jacked up by crossmember using wood blocks to get car up first. Off topic but which bolts am I looking for? Attached picture of what I saw underneath.
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Joined: Feb 2010
Posts: 695
Likes: 11
From: Oregon
Car: 1991 Z28
Engine: L31-R 350 w/ EBL P4
Transmission: 700R4
Axle/Gears: 2.73
Re: Okay to jack by front sway bar?
I was also wondering what bolts. I tightened all of the ones on the triangles, an then tightened the two A frame ones, and also tried to tighten two 18mm bolts by the A frame. Only 2 bolts on each of the triangles needed to be tightened. Went out and drove it and it still does it. I must have missed some but I can't see anymore.
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