Panhard rod and lower control arms
Thread Starter
Joined: Oct 2007
Posts: 1,375
Likes: 6
From: Wyoming
Car: 1995 Formula
Engine: LT1 350
Transmission: Built 4L60e
Axle/Gears: 10 bolt, Eaton posi, 3.73's
Panhard rod and lower control arms
Question:
Why would anyone need the adjustable panhard rod and lower control arms?
I don't understand what adjusting these parts would do.
I want to put lowering springs on my car, and I think I can just go with the non-adjustable parts.
Why would anyone need the adjustable panhard rod and lower control arms?
I don't understand what adjusting these parts would do.
I want to put lowering springs on my car, and I think I can just go with the non-adjustable parts.
Supreme Member
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Joined: Aug 2007
Posts: 1,525
Likes: 1
From: Milwaukee, Wisconsin
Car: 1987 IROC-Z
Engine: 383 with Edelbrock ProFlow EFI
Transmission: TH350
Axle/Gears: 12 bolt 3.73 Eaton posi
Re: Panhard rod and lower control arms
If you will be lowing the car you need to buy an adjustable panhard bar to center the rear end, and you should also get LCA relocation brackets to bring the angle of the LCA's back to spec.
Not sure why anyone would need adjustable LCA's... this is where someone else can chime in.
Not sure why anyone would need adjustable LCA's... this is where someone else can chime in.
Supreme Member
iTrader: (1)
Joined: Jul 2004
Posts: 10,763
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Panhard rod and lower control arms
If you notice your car dog tracking down the 1/4 mile, then you can adjust the length of your LCA's. If the rear end brackets, or body brackets, or etc is out of whack, you can adjust the LCA's.
For the average user I don't think it's useful.
For a lowered car, the adjustable panhard is a very good idea, as well as the LCARB's.
For the average user I don't think it's useful.
For a lowered car, the adjustable panhard is a very good idea, as well as the LCARB's.
Junior Member
iTrader: (1)
Joined: Jan 2008
Posts: 73
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From: Florida
Car: 1992 Formula
Engine: 5.7 350
Transmission: 700R4
Re: Panhard rod and lower control arms
I just bought my car a couple of months ago and the guy that owned it before me installed Eibach Sportline springs and I have noticed that the car is leaning to the passenger side buy 1" in the front and the rear. Do i need to install an adjustable panhard bar, would that help even the car out at all? I just put new shocks and struts in, new sway bar bushings and sway bar link kits. I dont know what else to do. please help!
Joined: Feb 2003
Posts: 2,498
Likes: 20
From: PNW
Car: 91 Black Formula KR
Engine: 305 TPI R69/G92
Transmission: Astro A5-Pro 5.0-McCleod
Axle/Gears: US Gear 3.42 Eaton True Trac
Re: Panhard rod and lower control arms
If the springs are aftermarket / lower or worn out stock, the car will sit off to one side like that...
Get new springs, the rears are easy to replace...
If it is lowered, get an adjustable Panhard bar to fix the offset of the lowered springs...
Raf
Get new springs, the rears are easy to replace...
If it is lowered, get an adjustable Panhard bar to fix the offset of the lowered springs...
Raf
Senior Member
Joined: Apr 2007
Posts: 394
Likes: 1
From: Huntington, NY
Car: 1983 Pontiac Firebird
Engine: LG4 305ci 4bbl
Transmission: 700r4
Axle/Gears: 10-bolt open diff.
Re: Panhard rod and lower control arms
any preference to which brand? i was thinking UMI because they have the non-adj. LCA's and panhard bar together for $185 and that seems like a good deal being that my car isn't lowered or a strip car and i don't need the adj. ones.
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Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: Panhard rod and lower control arms
I have all UMI stuff on my car. If you get the double adjustable panhard bar, it makes life much easier.
Senior Member
Joined: Apr 2007
Posts: 394
Likes: 1
From: Huntington, NY
Car: 1983 Pontiac Firebird
Engine: LG4 305ci 4bbl
Transmission: 700r4
Axle/Gears: 10-bolt open diff.
Re: Panhard rod and lower control arms
but do I need the double adj. being that my car isn't lowered? i had just planned on going all non-adj.- didn't think i needed anything more.
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: Panhard rod and lower control arms
punkdude908, no you can just get the non adj ones. I was refering to the original creator of this thread, that you seem to be hijacking.
Re: Panhard rod and lower control arms
punkdude908, If you're not on a tight budget you would still benefit from the adjustable versions. Even from the factory the rear end isn't perfectly aligned (angle and side to side). With the adjustables you could get everything perfect, plus if you ever do lower you would only have the right parts.
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From: Lubbock, TX
Car: 1989 GTA
Engine: Future: LSX Turbo
Transmission: built T-56
Re: Panhard rod and lower control arms
By buying the adjustable pieces you also get the spherical rod ends that dont bind as much as the solid poly bushings, which bind too much for most racing applications from what I have read.
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: Panhard rod and lower control arms
That's why I bought mine Thread Starter
Joined: Oct 2007
Posts: 1,375
Likes: 6
From: Wyoming
Car: 1995 Formula
Engine: LT1 350
Transmission: Built 4L60e
Axle/Gears: 10 bolt, Eaton posi, 3.73's
Re: Panhard rod and lower control arms
How do you know how to adjust the adjustable panhard bar?
I cannot visualize how it is done so the car is adjusted right.
I cannot visualize how it is done so the car is adjusted right.
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: Panhard rod and lower control arms
The panhard bar sits horizontal. By lengthening, or shortening it, you can adjust it so the rear is centered under the car. Basicly, it controls the side to side motion of the rearend.
Thread Starter
Joined: Oct 2007
Posts: 1,375
Likes: 6
From: Wyoming
Car: 1995 Formula
Engine: LT1 350
Transmission: Built 4L60e
Axle/Gears: 10 bolt, Eaton posi, 3.73's
Re: Panhard rod and lower control arms
I understand all that.....I am just trying to visualize how it is adjusted.
Is it when the wheels are hanging when the car is jacked up, or is when the car is on the ground or what?
How do you know when the rear end is aligned right, is what I mean cuz the adjustable panhard rod will not automatically put it all into place like the factory one.
Is it when the wheels are hanging when the car is jacked up, or is when the car is on the ground or what?
How do you know when the rear end is aligned right, is what I mean cuz the adjustable panhard rod will not automatically put it all into place like the factory one.
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: Panhard rod and lower control arms
1.The car needs to be on the ground, or a drive on lift.
2. The rod end goes on the axles mount. The rod end is threaded so you can adjust the length of it. On the double adjustable ones, it's adjusted the same way as the tie rods.
3. Hang a string with weights from the rear fenders. Adjust the panhard bar so the when you measure the distance between the tire and the weighted string are the same on the left and right sides. The rear is now centered.
Easy as pie
2. The rod end goes on the axles mount. The rod end is threaded so you can adjust the length of it. On the double adjustable ones, it's adjusted the same way as the tie rods.
3. Hang a string with weights from the rear fenders. Adjust the panhard bar so the when you measure the distance between the tire and the weighted string are the same on the left and right sides. The rear is now centered.
Easy as pie
Thread Starter
Joined: Oct 2007
Posts: 1,375
Likes: 6
From: Wyoming
Car: 1995 Formula
Engine: LT1 350
Transmission: Built 4L60e
Axle/Gears: 10 bolt, Eaton posi, 3.73's
Re: Panhard rod and lower control arms
OK, that makes sense.
I've never done this before, and I appreciate your help.
----------
So, the lower control arms, once the relocation brackets are installed (I am lowering my car) are done with the car on the ground, too?
Wait, I don't think it matters because it is just a length issue, to get the LCA's to simply reach the new brackets' holes, right?
I've never done this before, and I appreciate your help.
----------
So, the lower control arms, once the relocation brackets are installed (I am lowering my car) are done with the car on the ground, too?
Wait, I don't think it matters because it is just a length issue, to get the LCA's to simply reach the new brackets' holes, right?
Last edited by New2Chevy; Mar 29, 2008 at 12:08 AM. Reason: Automerged Doublepost
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: Panhard rod and lower control arms
The stock LCAs will work with the relocation brackets. If you do buy adjustable LCAs, set them to stock length. When you get an alignment, they can adjust the rear if necessary.
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