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

Panhard Rod Question....

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Old Jun 2, 2002 | 02:38 PM
  #1  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
Panhard Rod Question....

What exactly does the panhard bar do besides keeping the rear end centered under the car during turning?? Does it have any effect when running the 1/4 mile since you're only going straight and not turning??
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Old Jun 2, 2002 | 03:03 PM
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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
As you said, it keeps the rear end centered regardless if turning or going straight. I wouldn't consider removing it for drag racing. Lon
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Old Jun 5, 2002 | 07:13 PM
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86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
I wasn't considering removing it. The thing is, my stock panhard bar is bent pretty bad in two places and I'm contemplating whether to get an aftermarket one or just get the extra stock one off my friend since it's completely straight. I think I might start with the stock one with new poly bushings and if it ends up bent then I'll buy an aftermarket one.
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Old Jun 6, 2002 | 06:49 PM
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mrr23's Avatar
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From: orlando, fl usa
Car: 1986 pontiac TA
Engine: 360 HSR
Transmission: 700r4 3300 yank converter
Axle/Gears: 3.27 9 bolt
get the lakewood adjustable one. part number 20440.
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Old Jun 7, 2002 | 06:42 AM
  #5  
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From: Where the chicks absolutely LOVE the V-8 rumble!
Car: 92 RS - Fully Restored w/Custom Int
Engine: LO3 with some mods
Transmission: T-5
Axle/Gears: 3.42 Richmond
The panhard bar helps keep the car (axle) centered from side to side when you floor the gas pedal, which helps improve traction and gets you a quicker launch. You really don't feel the difference on a straight launch, but its there.

Come out of a tight turn and stomp on the gas and you will understand what I mean.
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Old Jun 19, 2002 | 09:25 PM
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Car: 1991 Conv. TA
Engine: Forged 350 with D-1SC
What is the advantage of an adjustable one???

Why not just get the solid bar??
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Old Jun 19, 2002 | 09:28 PM
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mrr23's Avatar
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From: orlando, fl usa
Car: 1986 pontiac TA
Engine: 360 HSR
Transmission: 700r4 3300 yank converter
Axle/Gears: 3.27 9 bolt
the advantage is if the rear is offset to one side, you can center it. you ever notice how your car corners better on direction as compared to the other way? that would be because the rear is offset to one side. center the rear and it will corner equally.
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Old Jun 20, 2002 | 05:57 PM
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Car: 1991 Conv. TA
Engine: Forged 350 with D-1SC
How exactly would you do this by lengthening or shortning the bar??
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Old Jun 21, 2002 | 09:08 AM
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From: Tampa Bay, FL
Car: 85 IROC
Engine: LB9
Transmission: 700R4
Axle/Gears: 3.42
Hmm could someone post a picture or diagram of the panhard bar mounted to the car..or even better the whole rear set up..I know very little about suspension and want to compare it to whats under my car.
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Old Jun 21, 2002 | 12:14 PM
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From: Fayetteville, NC
Car: 84 Z28 Convertible 2 Seater
Engine: Dart Little-M SBC 400
Transmission: Pro-built Automatics 700R4
Axle/Gears: Strange Engineering 3:73
here is my Panhard by Spohn:
Attached Thumbnails Panhard Rod Question....-panhard.jpg  
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Old Jun 21, 2002 | 12:16 PM
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From: Fayetteville, NC
Car: 84 Z28 Convertible 2 Seater
Engine: Dart Little-M SBC 400
Transmission: Pro-built Automatics 700R4
Axle/Gears: Strange Engineering 3:73
Here is another picture, so I dont know how to put them in one post.
Attached Thumbnails Panhard Rod Question....-kyb-shocks.jpg  
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Old Jun 21, 2002 | 04:51 PM
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keen88gta
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The adjustable panhard rod is only necessary when you lower your car. That way wehn it gets lowered you are still able to center your rear by tightening up the bolt.
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Old Jun 21, 2002 | 06:14 PM
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mrr23's Avatar
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From: orlando, fl usa
Car: 1986 pontiac TA
Engine: 360 HSR
Transmission: 700r4 3300 yank converter
Axle/Gears: 3.27 9 bolt
Originally posted by keen88gta
The adjustable panhard rod is only necessary when you lower your car. That way wehn it gets lowered you are still able to center your rear by tightening up the bolt.
not true. mine is sock height and it was .29 degrees ( about 3/32) to the right. i run an alignment shop and that is how i verified it.
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Old Jun 21, 2002 | 09:57 PM
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keen88gta
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Originally posted by mrr23


not true. mine is sock height and it was .29 degrees ( about 3/32) to the right. i run an alignment shop and that is how i verified it.
If your car is stock height and your rear was out of alignment then your factory stamped steel panhard rod is bent or otherwise warped.

An aftermarket non-adjustable panhard rod can be used if keeping the car stock height. If you wish to lower your car. Either now or in the future than a more expensive adjustable rod is needed. TRUTH.
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