Home Resources Forums Nationals Meets Store
11/17/17 10:28 am *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Keep CAFCNA Alive! Become a Supporting Member Today!

 
   Home   Help Search Login Register Bookmark  
Advertisement
Put your advertisement image here...


Advertisement
 
Pages: [1]   Go Down
  Print  
Author Topic: Torsion bar maxed out?  (Read 522 times)
0 Members and 1 Guest are viewing this topic.
mz
Member
**
Offline Offline

Posts: 20


Awards
« on: 10/15/17 08:50 am »

04 Z71 184000 miles.
Truck has been rough for a bit, took it to the shop and they have me a list of problems.
Idler arm, pitman arm loose
Wheel bearing going out
Rear sway bar broke
And "vehicle sits low in front, torsion bar adjusters maxed out. New torsion bars or keys to restore ride height"

I will be doing the work myself, but I'm trying to figure out what I need to do with the torsion bar problem. Only the driver side bolt is maxed out. The truck hits bumps very hard, that's why the mechanic said it is bottoming out. I have been reading about different keys, but I do not want to raise the vehicle and compromise the stock ride quality. Is it possible to get different keys to raise it up enough to prevent it from bottoming out, but keep the bars wound less to keep the ride smooth? Any help greatly appreciated.
Logged
redheadedrod
CAFCNA 2015 Premium Member
Full Member
*
Offline Offline

Posts: 2,459


2003 Z71


Awards
« Reply #1 on: 10/15/17 03:36 pm »

Should inspect the bar and both ends for signs of damage. Make sure the adjustment really is bottomed out and that it isn't just a snapped off adjuster bolt.

Mine rides the same as it did new and the adjusters are far from bottomed out.

'03 z71 with 269k miles as of yesterday.

Could be bad keys, adjusters, torsion bars or where the bars mount into the keys or frame.

Also look for bent frame and other damage.

Have not heard of keys or torsion bars going bad but not impossible.

Sure others can give other options or give better suggestions but trying to at least give you something to look at.

If someone put different A arms or knuckles on the truck this could be your issue as well if they purposely tried to lower the truck. Or if your bushing or ball joints are toast. Also look for damage to the A arms and knuckles while inspecting for non factory pieces.

Rodney

Logged

2003 Cladded Black Z71 - PC installed otherwise mostly stock.
4 Light Brake/Turnsignal
All on high and FTDRL (BCM friendly version)
MS03 2500
CAFCNA 2017 Premium Member
Full Member
*
*
*
*
*
*
*
*
*
*
*
Offline Offline

Posts: 37,006


Awards
« Reply #2 on: 10/15/17 08:49 pm »

Did you lift or level it.. The suspension is suppose to ride on the bump stops
Logged

2003 2500
mz
Member
**
Offline Offline

Posts: 20


Awards
« Reply #3 on: 10/17/17 09:31 am »

No lift has been done. It use to be a nice smooth ride that has slowly gotten worse. All the suspension is stock. Could the bars just be wore out?
Logged
MS03 2500
CAFCNA 2017 Premium Member
Full Member
*
*
*
*
*
*
*
*
*
*
*
Offline Offline

Posts: 37,006


Awards
« Reply #4 on: 10/17/17 03:44 pm »

The bars or keys can wear out. Replace the bump stops also. In my experience the front suspension parts are good for 100K miles then things like ball joint, idler arms , pitman arm, control arms should be inspected.
Logged

2003 2500
mz
Member
**
Offline Offline

Posts: 20


Awards
« Reply #5 on: 10/22/17 12:58 pm »

Is the the stock bump stop?
Logged
mz
Member
**
Offline Offline

Posts: 20


Awards
« Reply #6 on: 10/22/17 01:00 pm »

Couple more
Logged
mz
Member
**
Offline Offline

Posts: 20


Awards
« Reply #7 on: 10/22/17 01:01 pm »

Bolt
Logged
MS03 2500
CAFCNA 2017 Premium Member
Full Member
*
*
*
*
*
*
*
*
*
*
*
Offline Offline

Posts: 37,006


Awards
« Reply #8 on: 10/22/17 06:58 pm »

I  don't have a 1500 but I thought they were suppose to be yellow.

And why the adjuster is maxed out is something the shop is going to have to figure out
Logged

2003 2500
mz
Member
**
Offline Offline

Posts: 20


Awards
« Reply #9 on: 10/24/17 09:36 am »

That's what I was thinking. The GM ones that I'm seeing are twice as long I think.
Logged
mz
Member
**
Offline Offline

Posts: 20


Awards
« Reply #10 on: 11/14/17 06:02 am »

Replaced idler arm and pitman. Steering is much better now. Raised the torsion bars to go about 1/2 above the new bump stops, and that made a huge difference. Seems like it's not bottoming out now. The only problem now is the passenger side torsion bar still has half the bolt left for adjustment, and the drivers side is about one thread from being maxed. The ride is much better but I read I should have a inch above the bump stops. With the driver side maxed there must be something wrong with that bar. Should I look to replace the bar or both? Or put different keys to allow for more adjustment?
Logged
MS03 2500
CAFCNA 2017 Premium Member
Full Member
*
*
*
*
*
*
*
*
*
*
*
Offline Offline

Posts: 37,006


Awards
« Reply #11 on: 11/14/17 09:26 am »

I think that's something an alignment shop can tell you, which one is worn.

The suspension should touch the bump stop.

Are you trying to level it
« Last Edit: 11/14/17 10:08 am by MS03 2500 » Logged

2003 2500
mz
Member
**
Offline Offline

Posts: 20


Awards
« Reply #12 on: 11/14/17 10:59 am »

Just trying to restore the ride.
Logged
MS03 2500
CAFCNA 2017 Premium Member
Full Member
*
*
*
*
*
*
*
*
*
*
*
Offline Offline

Posts: 37,006


Awards
« Reply #13 on: 11/14/17 11:12 am »

My guess since I'm not there is the keys worn, but the bars can get metal fatigue also.

Logged

2003 2500
Handmedown04
Member
**
Offline Offline

Posts: 12


Awards
« Reply #14 on: 11/14/17 10:06 pm »

My 2004 is still all stock and came from the factory with the adjuster bolts almost completely maxed out, and it has black bumps tops.
Logged
MS03 2500
CAFCNA 2017 Premium Member
Full Member
*
*
*
*
*
*
*
*
*
*
*
Offline Offline

Posts: 37,006


Awards
« Reply #15 on: 11/15/17 12:18 am »

Handmedown04 bumps stops do not last that long, you should replace them. A cheap fix. Thumbs up!
Logged

2003 2500
ygmn
Administrator
Full Member
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Offline Offline

Posts: 32,901


Insert Funny Text Here _______________ .


Awards
« Reply #16 on: 11/15/17 05:14 am »

Nothing wrong with torsion bars having more thread showing on one side or the other.

As I am told they are set to get even ride height from left to right.

And since there are manufacturing tolerances I can see where one has more thread showing than the other.
Logged

Thread Killer ... After I post they die?
2002 Pewter Z66 - Sept 2001
CAFCNA Album
LSU BABY!
YANKEES BABY!
SAINTS BABY!
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2006-2011, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.038 seconds with 24 queries.
Official SEMA Member ChevyAvalancheFanClub website are the rightful owners as indicated in the ALT TXT tags provided.  Chevrolet, Chevy, Avalanche, PRO-TEC, PASSlock, Midgate, the Chevrolet bowtie logo, Avalanche logo, and their images are registered trademarks of the General Motors Corporation and are used with kind permission as approved by Chevrolet Public Relations, Chevrolet Brand Management, and the Chevrolet Legal Department (thanks Chevrolet!).  OnStar and it's logo are the property of OnStar.  XM, XM Radio, and the XM logo are property of XM Radio.  I'm just a little guy so don't even think about suing me.  It's recommended you read the Privacy Policy and Terms of Use of this website.  The Chevrolet Avalanche Fan Club of North America is a proud member of SEMA, the Specialty Equipment Market Association.  All content appearing on this is protected under international copyright , 2002 to 2008, All Rights Reserved