Suspension and Chassis Questions about your suspension? Need chassis advice?

Wonderbar Bracket Bolt

Thread Tools
 
Search this Thread
 
Old 03-26-2018, 08:52 AM
  #1  
Junior Member
Thread Starter
 
SaintAggie's Avatar
 
Join Date: Feb 2018
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Wonderbar Bracket Bolt

I recently purchased a 89 IROC (my first third gen) and have begun doing necessary repairs. upon starting my most recent repair, replacing a broken wonderbar, I ran into a small but frustrating problem. The bracket that attaches the frame to the wonderbar on the drivers side is missing it's upper bolt. From what I can tell the bolt size is different than all the other bolts. Does anyone have any idea what size it is, or how I can find this information? Thanks in advance.
Old 03-26-2018, 09:15 AM
  #2  
Supreme Member

iTrader: (11)
 
scooter's Avatar
 
Join Date: Sep 1999
Location: NJ
Posts: 4,345
Received 298 Likes on 234 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Wonderbar Bracket Bolt

I think it is an M12 bolt.
Old 03-26-2018, 09:23 AM
  #3  
Supreme Member

iTrader: (4)
 
chazman's Avatar
 
Join Date: Dec 2001
Location: Chicagoland
Posts: 9,666
Received 546 Likes on 376 Posts
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: Wonderbar Bracket Bolt

Wow, I've never seen a Wonderbar break.
Old 03-26-2018, 09:24 AM
  #4  
Junior Member
Thread Starter
 
SaintAggie's Avatar
 
Join Date: Feb 2018
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Re: Wonderbar Bracket Bolt

Is that different than the other bolts? I believe they were standard and much smaller? Thanks for the reply
Old 03-26-2018, 09:24 AM
  #5  
Supreme Member

iTrader: (2)
 
Bob88GTA's Avatar
 
Join Date: Apr 2000
Location: Huntsville AL
Posts: 3,938
Received 97 Likes on 62 Posts
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: Wonderbar Bracket Bolt

Originally Posted by chazman
Wow, I've never seen a Wonderbar break.
Really makes ya wonder....
Old 03-26-2018, 09:26 AM
  #6  
Junior Member
Thread Starter
 
SaintAggie's Avatar
 
Join Date: Feb 2018
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Re: Wonderbar Bracket Bolt

I will post a picture later. It was broken, welded, and broke again. Actually a bit concerning now that I think more about it...

Last edited by SaintAggie; 03-26-2018 at 09:30 AM.
Old 03-26-2018, 09:40 AM
  #7  
Supreme Member

iTrader: (4)
 
chazman's Avatar
 
Join Date: Dec 2001
Location: Chicagoland
Posts: 9,666
Received 546 Likes on 376 Posts
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: Wonderbar Bracket Bolt

To answer your question, if I remember correctly, they are simply the sway bar bolts.
Old 03-26-2018, 10:06 AM
  #8  
Junior Member
Thread Starter
 
SaintAggie's Avatar
 
Join Date: Feb 2018
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Re: Wonderbar Bracket Bolt

The sway bar does bolt into this bracket, but the bracket bolts to the side of the frame rail under the steering gearbox. That's the bolt I'm wondering about. Sorry I was not more clear
Old 03-26-2018, 01:21 PM
  #9  
Supreme Member

iTrader: (11)
 
scooter's Avatar
 
Join Date: Sep 1999
Location: NJ
Posts: 4,345
Received 298 Likes on 234 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Wonderbar Bracket Bolt

They may be M10, but I am fairly sure it's an M12 for that bracket
Old 03-26-2018, 04:52 PM
  #10  
Junior Member
Thread Starter
 
SaintAggie's Avatar
 
Join Date: Feb 2018
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Re: Wonderbar Bracket Bolt

Awesome thanks Scooter!
Old 03-26-2018, 10:03 PM
  #11  
Supreme Member
iTrader: (1)
 
NoEmissions84TA's Avatar
 
Join Date: Feb 2017
Location: Meriden, CT 06450
Posts: 4,030
Received 511 Likes on 428 Posts
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: Wonderbar Bracket Bolt

If your car is breaking Wonderbars, you might want to remove the steering box and have a look at the frame. They crack right there.
Old 03-27-2018, 04:21 PM
  #12  
Junior Member
Thread Starter
 
SaintAggie's Avatar
 
Join Date: Feb 2018
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Re: Wonderbar Bracket Bolt

I absolutely will do that. Thanks for the advice. I do believe it was broke as a result of a collision somewhere in the cars past, but am not sure.
Old 03-29-2018, 10:02 AM
  #13  
Supreme Member

iTrader: (1)
 
IROCZ1989's Avatar
 
Join Date: Dec 2002
Location: MA
Posts: 1,391
Received 66 Likes on 56 Posts
Car: 1989 IrocZ
Engine: 421 Dart Stroker
Transmission: 4L60E Cahall Performance Built
Axle/Gears: Midwest Chassis Fab 9/ 3.55 gears
Re: Wonderbar Bracket Bolt

It's a M10 1.5 thread. 25mm or 30mm long will work
Old 04-04-2018, 05:19 PM
  #14  
Junior Member
Thread Starter
 
SaintAggie's Avatar
 
Join Date: Feb 2018
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Re: Wonderbar Bracket Bolt

Originally Posted by IROCZ1989
It's a M10 1.5 thread. 25mm or 30mm long will work
This was it. Thanks!

Anyone ever seen This?

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
85Iroc-Z
Suspension and Chassis
15
12-16-2010 10:05 AM
quisterio
Suspension and Chassis
9
04-15-2008 06:43 PM
Joez88Camaro
Suspension and Chassis
36
09-25-2004 10:16 PM
Hg
Suspension and Chassis
8
06-05-2003 09:43 AM



Quick Reply: Wonderbar Bracket Bolt



All times are GMT -5. The time now is 07:58 PM.