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Old 10-30-2012, 07:20 PM
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tie rod length

The car is a 54 Plymouth with a manual steering box and factory tie rods. I have cut a pocket in the frame and moved the box over into the pocket to provide engine clearance (header to steering shaft) and starter. 5.2 Magnum.
Plenty of frame reinforcment and step plugs (tig welded) to alter the tie rod lengths. When I turn, center to lock left, i get 1.75 +/- turns. When I turn right, I get 1.25 +/- turns. Can this be corrected by lengthening one side and shortening the other? Or have I created a bigger mess than planed? May I include the Tie rod lengths are unequal length. Pitman arm to left and Pitman arm to right.

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Old 10-30-2012, 07:58 PM
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Quote:
Originally Posted by plazawag54 View Post
The car is a 54 Plymouth with a manual steering box and factory tie rods. I have cut a pocket in the frame and moved the box over into the pocket to provide engine clearance (header to steering shaft) and starter. 5.2 Magnum.
Plenty of frame reinforcment and step plugs (tig welded) to alter the tie rod lengths. When I turn, center to lock left, i get 1.75 +/- turns. When I turn right, I get 1.25 +/- turns. Can this be corrected by lengthening one side and shortening the other? Or have I created a bigger mess than planed? May I include the Tie rod lengths are unequal length. Pitman arm to left and Pitman arm to right.
Your Pitman arm needs to be centered on the steering box output shaft. When you turn your steering wheel full left & right mark the shaft at the 'halfway point'. Then make sure your Pitman arm is centered on the shaft. This way you will have equal travel from your Pitman arm left & right. Try this as your starting point and let us know what happens. Good luck.
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Old 10-31-2012, 07:44 AM
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steering

The pitman arm is keyed to only go on one way. If I shorten one end and lengthen the other, in theory, this should correct the issue, however it would clock the steering wheel differently, Ill look at it again tonight.
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Old 10-31-2012, 08:42 AM
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If you shorten one side and lengthen the other with the steering box moved over an equal amount it will work exactly as it did before! The pitman arm is simply pushing a rod, moving the rod at the other end exactly the same whether that rod is a foot long or a yard long.

What it may screw up is changing the arch it follows when the control arm goes up and down creating bump steer.

Brian
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Old 10-31-2012, 06:12 PM
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The bumpsteer issue is another concern. Ive installed lowering uprights from Fatman and they said to bend the steering arms down 3 inches or it would bumpsteer. I did manage to get two and a some change in them, but had to raise the left one an inch because the angle was too steep for the tie rods to work. What Ive got here is a big, frustrating mess. And I hope when its all said and done it wont steer so bad it wont be fun to drive. Thanks for your help.
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