wonder bar install
Thread Starter
Supreme Member
Joined: Aug 2003
Posts: 1,644
Likes: 4
From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
wonder bar install
I just ordered the TDS wonder bar, I've been reading it's a pretty easy install. I'm just wondering if it better to have the car on ramps of the suspension unloaded to install?
Junior Member
Joined: Apr 2010
Posts: 87
Likes: 8
From: Saskatchewan, Canada
Car: '82 Z28
Engine: Dart 406 ci
Transmission: T56
Axle/Gears: 3.42
Re: wonder bar install
Thread Starter
Supreme Member
Joined: Aug 2003
Posts: 1,644
Likes: 4
From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Senior Member
iTrader: (1)
Joined: Aug 2006
Posts: 632
Likes: 4
From: Bethlehem, CT
Car: 1983 Firebird SE
Engine: C5 LS1
Transmission: 6 speed
Axle/Gears: 3.42
Re: wonder bar install
Makes no difference..... just have it flat. Ramps are good. You have to be able to get to the mounts.
Some Wonder Bars do not fit if you have factory dual fans. I got a UMI one when I went to the dual fans. My Spohn did not fit.
Some Wonder Bars do not fit if you have factory dual fans. I got a UMI one when I went to the dual fans. My Spohn did not fit.
Joined: Mar 2009
Posts: 218
Likes: 0
From: Ontario, Canada
Car: 1985 Pontiac Trans Am
Transmission: BW T5, Hurst Short Throw Shifter
Axle/Gears: 3.70 Posi
Re: wonder bar install
I just put the front end on jack stands. Its helpful to have a small jack to lift the sway bar back up if you are on your own. Agreed, it only takes a few minutes. Super easy if you have an impact gun.
Supreme Member
Joined: Apr 2006
Posts: 4,482
Likes: 9
From: Northern, CA
Car: 1989 Iroc-Z Camaro
Engine: TBI,5.0
Transmission: Automatic 700R4
Axle/Gears: Eaton Posi,3.42,LPW Ultimate Cover
Re: wonder bar install
Same here,I just used jack stands and a small floor jack for the sway bar.
Heres a link to a UMI bar install.
https://www.thirdgen.org/forums/afte...ml#post5141124
Heres a link to a UMI bar install.
https://www.thirdgen.org/forums/afte...ml#post5141124
Last edited by Ron U.S.M.C.; Dec 6, 2012 at 08:56 PM.
Junior Member

Joined: Aug 2008
Posts: 98
Likes: 0
From: Lexington NC
Car: 85 IROCZ
Engine: 350 TPI with a fast EZ efi
Transmission: t-5 conversion
Axle/Gears: 3;42
Re: wonder bar install
When I buy one ( next Month) I'll be doing it on my 4 post lift, I hate crawling under cars on my back
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Joined: Dec 1999
Posts: 5,964
Likes: 37
From: Hacienda Heights, CA
Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
Re: wonder bar install
Another advantage of the TDS Steering Brace vs any other brand. Once you've removed the 2 bolts per sway bar mount bracket and dropped the sway bar, you install the steering brace using the 3rd hole and another existing bolt on the chassis. Then you lift the sway bar back up and tighten the remaining bolts. Every other brand you'll be lifting the sway bar AND steering brace at the same time and fiddling with the two bolts per side to install.
Lon
Lon
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: wonder bar install
I have the TDS wonderbar in mine and it went in with zero issues
Joined: Mar 2010
Posts: 538
Likes: 34
From: South FL
Car: 1989 Formula T-Top
Engine: 350 TPI, twin turbo
Transmission: 700R4
Axle/Gears: 3.23
Re: wonder bar install
+1 on the dual fans - the bar does not line up with the holes in the frame - about 1/8" off. What do the dual fans have to do with it I wonder.
Senior Member
iTrader: (1)
Joined: Aug 2006
Posts: 632
Likes: 4
From: Bethlehem, CT
Car: 1983 Firebird SE
Engine: C5 LS1
Transmission: 6 speed
Axle/Gears: 3.42
Re: wonder bar install
Here is what I found on my car. I have not seen the TDS bar.
Where the factory piece is small in diameter, aftermarket Wonder bars use large diameter bars. Spohn bar was in the same place as my dual fans. UMI has their bar moved back on the mounts - towards the rear wheels. Takes the bar out of where the dual fans are.
Where the factory piece is small in diameter, aftermarket Wonder bars use large diameter bars. Spohn bar was in the same place as my dual fans. UMI has their bar moved back on the mounts - towards the rear wheels. Takes the bar out of where the dual fans are.
Thread Starter
Supreme Member
Joined: Aug 2003
Posts: 1,644
Likes: 4
From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Re: wonder bar install
great fit and easy install just like TDS advertised. I've seen people say some wonderbars have clearance issues with duel fans. TDS bar had no issues with my duel fans.


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