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

Need help adjusting panhard bar

Thread Tools
 
Search this Thread
 
Old Mar 18, 2011 | 01:26 PM
  #1  
Max's Avatar
Max
Thread Starter
Member
 
Joined: Jun 2000
Posts: 350
Likes: 0
From: Madison, WI USA
Car: '89 Camaro Convertible
Engine: LB9 Heads/LT1 Cam Holley 670 Carb
Transmission: T5 Manual
Axle/Gears: 3.73
Need help adjusting panhard bar

I noticed that my axle in not quite centered. It appears to be off to one side by about 3/8". I have a lakewood adjustable panhard bar. It's the type where you have to drop one end to make the adjustment.

Can I move the axle over 3/8" without too much tweeking of the LCAs, torque arm, driveshaft, etc. If I do, will it have any effect on the cars allignment?

Finally, is it safe for one person to make the adjustment while the car is on jackstands? How hard will I have to shove the axle over to get the bolt hole to line back up?

How hard would it be for one person to make the adjustment?

Any advice would be much appreciated.
Reply
Old Mar 18, 2011 | 01:31 PM
  #2  
BlackenedBird's Avatar
Supreme Member
iTrader: (5)
 
Joined: Mar 2011
Posts: 2,893
Likes: 4
From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: Need help adjusting panhard bar

As you adjust the PHB, it will move over. Use a long string & tie 1 washer to each end. Hang it across the back hatch, hanging over the fender lips centered on the axles. That will tell you how centered the axle is, at the same time.

Make your adjustment until you get it centered. If you do it on jackstands, make sure they are under the rear end, not under the body. No need to use jackstands though. I do my lowered car with the tires on the ground.
Reply
Old Mar 18, 2011 | 01:36 PM
  #3  
Max's Avatar
Max
Thread Starter
Member
 
Joined: Jun 2000
Posts: 350
Likes: 0
From: Madison, WI USA
Car: '89 Camaro Convertible
Engine: LB9 Heads/LT1 Cam Holley 670 Carb
Transmission: T5 Manual
Axle/Gears: 3.73
Re: Need help adjusting panhard bar

Thanks for the reply but it sounds like your bar is adjustable while on the car. With mine I have to disconnect one end, turn it either in or out, and re-connect. So I assume I'm going to have to do some shoving around of the rear axle. I guess I'm mostly wondering how hard it is to shove that axle back and forth in order to get the bolt hole to line up again. Is this a safe one person job?

Good advice on using the plumb lines to make sure the axle is on center. That's what I was planning to do.

Last edited by Max; Mar 18, 2011 at 01:42 PM.
Reply
Old Mar 18, 2011 | 02:18 PM
  #4  
BlackenedBird's Avatar
Supreme Member
iTrader: (5)
 
Joined: Mar 2011
Posts: 2,893
Likes: 4
From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: Need help adjusting panhard bar

You have a single adjustable one? So you get adjustment points of every 180 degrees of rotation, of that 1 end, huh?

Mine is yes & no. It can be adjusted on-car, but 1 end has to be dropped to loosen the jam nut, bar put back in place, adjusted, drop that 1 end again, tighten the jam nut, put the bar back in place. Pain in the butt! My axle is about 1/8" off center now, but I didn't wanna go through the whole bar dropping thing again to adjust it 1/16".

Safe for 1 person & takes very little effort to move the car, although to move it into place, then hold it there while you put the bolt back in? Might be tricky. But the effort needed to push the car over is not very much. Just hafta hold it there while the person underneath puts the bolt back in.

You'd have to seriously shove the car to upset it's vertical balance on the springs. Plus the LCAs & shocks will limit just how far it can be moved before "falling"

A second person would be helpful for pushing & holding, while the bolt is put back into place for the PHB.
Reply
Old Mar 18, 2011 | 02:39 PM
  #5  
Max's Avatar
Max
Thread Starter
Member
 
Joined: Jun 2000
Posts: 350
Likes: 0
From: Madison, WI USA
Car: '89 Camaro Convertible
Engine: LB9 Heads/LT1 Cam Holley 670 Carb
Transmission: T5 Manual
Axle/Gears: 3.73
Re: Need help adjusting panhard bar

Ah ha. You're suggesting I leave the car on the ground. Drop one end of the bar and adjust, then shove the body over to reconnect. You're saying the body should move over pretty easily while I line up the bolt holes?

That would be a safe way to do it and it sounds like having a second person would be a big help.

Do you think 3/8" one way or the other will have much effect on LCAs (binding, bending, etc.)?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BrianChevy
Wheels and Tires
10
Aug 8, 2019 02:16 PM
Mark_ZZ3
TPI
15
May 24, 2018 01:02 PM
Jorlain
Exterior Parts Wanted
8
Jun 29, 2017 11:04 PM
Nervous2
Firebirds for Sale
2
Oct 8, 2015 10:53 PM
loud91rs
Camaros for Sale
7
Oct 5, 2015 10:05 PM




All times are GMT -5. The time now is 05:16 PM.