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Discussion Starter #1 (Edited by Moderator)
Friends,
The pictures I've seen with one of our vehicles having had a pan-hard bar installed, or other muscle cars w/ aftermarket bars, show them located over the axle tubes. Would it not be better to have it run parallel and behind the housing? I know to service the diff the bar would need removed, but wouldn't that allow a longer bar with more room for install? I could see the bracket needing some re-enforcement on the frame side; I'd want to do that anyways though. Thank you!
- Rob
 

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Re: Panha Bar Location

A car with leaf springs doesn't use a Panhard bar. That is used (or a Watts linkage) to control the lateral location of the rear end in a car with coil springs and trailing control arms to locate the rear end.

If you have back halved the car and use a four link rear suspension with coil overs to hold the car up you would use a Panhard bar. With stock leaf springs no, the leaves not only hold up the car but locate the rear end.

Big Dave
 

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Discussion Starter #3
Re: Panha Bar Location

A car with leaf springs doesn't use a Panhard bar. That is used (or a Watts linkage) to control the lateral location of the rear end in a car with coil springs and trailing control arms to locate the rear end.

If you have back halved the car and use a four link rear suspension with coil overs to hold the car up you would use a Panhard bar. With stock leaf springs no, the leaves not only hold up the car but locate the rear end.

Big Dave
Sir,
Almost every time, yes. If you are running composite leafs (and), auto crossing/road racing or have very little wiggle room with your tire combination aftermarket PH bars can help keep the rear centered; I'm certain you knew that already though. I was more interested in seeing if a difference could be felt on the street. Just for fun and to play with my welder. I know that the roll center would need to match the leafs or the car would possibly bind. A Watts link would avoid the bind issue altogether but is more complicated.

I may have answered my own question though. Chris Alston offers one designed to fit behind the axel tubes; thus, I'm assuming it works similarly.
- Rob
 

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Re: Panha Bar Location

Here's a pic for reference of a pro touring setup with 4 link with a panard bar, it has coilovers.
https://www.detroitspeed.com/1967-1969-F-Body-products/041703-QUADRALink.html

I too have thought about adding a panard bar but there's a few obstacles like the exhaust routing. Once it gets warmer I'll crawl under my car and check for clearance.
In the meantime here's a link from Ridetech with their universal panard bars.
Components :: Panhard Bars - RideTech.com - Suspension Specialist - Online Store
Keep us posted if you fab something.
 

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Discussion Starter #5
Here's a pic for reference of a pro touring setup with 4 link with a panard bar, it has coilovers.
https://www.detroitspeed.com/1967-1969-F-Body-products/041703-QUADRALink.html

I too have thought about adding a panard bar but there's a few obstacles like the exhaust routing. Once it gets warmer I'll crawl under my car and check for clearance.
In the meantime here's a link from Ridetech with their universal panard bars.
Components :: Panhard Bars - RideTech.com - Suspension Specialist - Online Store
Keep us posted if you fab something.
Thank you! I will definitely post once I dive on this. On a different topic, why pay out the nose for delrin bushings when you can buy bar stock, for lack of a better term, for $12 a foot.... I mat try that one too.
. - Rob
 

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Why do you feel the need to add a panhard bar? The purpose of it is to keep the rear wnd from moving laterally relative to the body.

The leaf springs are already achieving this purpose.

A panhard bar actually moves the rear end slightly back and forth as the rear suspension travels up and down. With the bar installed parallel to the rear end the body will be pulled to that side any time the car is moved up or down from that position. This may cause stress on other suspension components and possibly have a negative effect on the ride.
 

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I'm opposed to the idea, even with composite springs. The first premise is, that the leaf springs or bushings are allowing the rear axle to move laterally. With Delrin bushings in the shackles, I dont think there is enough movement to be concerned about.
 

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Discussion Starter #8
I'm opposed to the idea, even with composite springs. The first premise is, that the leaf springs or bushings are allowing the rear axle to move laterally. With Delrin bushings in the shackles, I dont think there is enough movement to be concerned about.
Fair enough. I don't recon arguing with you would be wise. Thank you. I'll play with my welder in other areas.

- Rob
 
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