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Old 11-13-2010, 07:28 PM   #1
FunnyCar65
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Default Straight Axle/Cross Steering Set Up Do and Dont's

I'd like to start a end all tell all thread on straight axles set up with cross steering.Whats the best way, best parts to use.Input by those that have done it with success please.
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Last edited by FunnyCar65; 11-14-2010 at 06:15 AM.
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Old 11-13-2010, 07:39 PM   #2
hillbilly4008
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Default Re: Straight Axle/Cross Steering Set Up Do's&Dont's

man i read this title to fast, i thought it read "Straight Axle/ Cross Steering Set Up To Do Doughnuts"
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Old 11-14-2010, 06:17 AM   #3
FunnyCar65
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

Any tech tips and or photos of the proper way to set up the drag link to prevent bump steer?
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Old 11-14-2010, 07:28 AM   #4
redlineracer42
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

Hi,I know you want the pitman arm level so ya don't create bumpsteer.Also,I set up the axle so the kingpin inclination was 7 degrees back at the top.
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Old 11-14-2010, 08:26 AM   #5
lawman
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

her are a few pics of a cross steer and Vega box on a 51 chevy truck frame and 38 Chevy cab. Hope these help.Tom (Tired Old Man)
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Old 11-14-2010, 08:27 AM   #6
RAY With
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

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Originally Posted by redlineracer42 View Post
Hi,I know you want the pitman arm level so ya don't create bumpsteer.Also,I set up the axle so the kingpin inclination was 7 degrees back at the top.
Totally agree -Bump steer on a straight axle is lethal to your health
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Old 11-14-2010, 08:31 AM   #7
Rpmrex
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

You'll want a pan hard bar on cross steer.
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Old 11-14-2010, 08:54 AM   #8
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

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Originally Posted by Rpmrex View Post
You'll want a pan hard bar on cross steer.
Actually a panhard bare is a good idea on any setup. But I see it as a necessity on a cross steer.
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Old 11-14-2010, 09:27 AM   #9
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

So true on the panhard bar!!! I forgot to mention that!
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Old 11-14-2010, 01:41 PM   #10
FunnyCar65
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

This is the kinda info I'm after.I see alot of parallel leaf spring set ups with out a panhard?
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Old 11-14-2010, 02:41 PM   #11
GARY T.
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

Anybody got a pic of one with a panhard bar ---wheres the best places to attache it so it ain't ugly?
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Old 11-14-2010, 11:12 PM   #12
Martys 55
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

heres a pic of mine not the best pic i will take a couple for you this week marty
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Old 11-15-2010, 12:30 AM   #13
KrisKustomPaint
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

The dead spring perch looks like a tidy alternative to a panhard bar.
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Old 11-15-2010, 06:57 AM   #14
Model A John
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

If you have parallel leaf springs, you don't need a panhard bar. My Chevy II is set up that way with a Speedway kit.
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Old 11-15-2010, 08:25 AM   #15
C/Gas55
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

Parallel leafs should not run perfectly "parallel" to each other. If they do, you will need a panhard bar.
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Old 11-15-2010, 08:57 AM   #16
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

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Originally Posted by FunnyCar65 View Post
This is the kinda info I'm after.I see alot of parallel leaf spring set ups with out a panhard?
A pan hard bar is kind of like a backyard sway bar. No before some ass hat tires to say I said it was a sway bar I did not say it was or is a sway bar. So we can overcome that little bit of drama before it starts.

I helps keep everything in line. Leaf springs have some lateral strength by nature but they are designed to go up and down. The pan hard bar keeps it from swaying from side to side. On any steering setup your steering box for all intents and purposes is stationary if the suspension moves to the side and the steering box doesn't move with it something has to give. Normally your wheels turn to make up for the difference. It is more acute on a car with cross steer; where the steering box is solid in the chassis and the link reaches across to cause the wheels to turn when it is moved.

So if you use something to keep your suspension from moving from side to side you limit that motion. A properly set up pan hard bar will accomplish that. Build it so that at rest it is level or nearly level. A good idea also is to make the panhard bar as long as possible. That way it swings a longer smother arc and the motion of the suspension doesn't affect it as much.

Actually a watts link works even better but it does take some engineering. Might look for someone who has built one or knows the geometry of one to help you out or draw you a picture if you decide to go that route.
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Old 11-15-2010, 10:57 AM   #17
High Class Rat
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

Porknbeaner,

Which side of the frame should a pan hard bar be mounted to? I seem to recall reading somewhere that it should be attached to the DRIVERS SIDE of the frame.
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Old 11-15-2010, 11:47 AM   #18
KrisKustomPaint
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Default Re: Straight Axle/Cross Steering Set Up Do and Dont's

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Porknbeaner,

Which side of the frame should a pan hard bar be mounted to? I seem to recall reading somewhere that it should be attached to the DRIVERS SIDE of the frame.
It makes no difference, unless something is in the way.
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