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Old 05-08-2004, 12:31 AM
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66 Impala Springs........

I have a 1966 Impala. When I rebuilt the front end with all new bushings... I put in new springs and cut two coils. The alignment was fine and car rode good. Then I put 2" drop spindles on and the camber was 2 degrees out. The best the alignment shop could do... So......This week I am going to put stock springs back in to retain the ride until I get my air ride setup......

Are new spings today any different than original spings from 1966? I ordered springs to my cars specs...... Automatic, no air, small block,ect..... And do springs have a "break in period".....

If anyone has pictures of 66 Impala with 2" drop spindles and stock springs I would love to see how it sits....... Thanks....

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Old 11-01-2007, 11:04 PM
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66 Impala

I also have a 66 impala that i want to put 2" drop spindles. if you come across any pic please let me know
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Old 11-02-2007, 12:15 AM
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If the camber was indeed 2 degrees out the spindles were made wrong to begin with. The selling point of a dropped spindle is that they "DON'T" change the front end geometry if they are made correctly.
The spindles are the correct spindles for a 66 I take it? If you are trying to make something for another model fit that may be your problem.
Are they cast or forged spindles or modified originals that are cut and welded?
I've done alignments on a few hundred of that style front end. 65/67 and never have seen one off that far.

I went out to the garage and dug out my old manual that I used when I was working on those cars on a daily basis. Are the cam bolts on the lower control arms tight. These have to have around 100 lbs of torque on the nut to stay in place over anything but the smoothest roads.
Also check the cam/ washer on both sides of the crossmember to make sure that the offset is in the same exact spot and the hole in the cam washer isn't wallowed out. That is a common problem with those. Also the threads on the cam bolt shouldn't be chewed up.

My normal procedure on one of those was to set the camber where I wanted it. 1/2 degree pos on drivers side 1/4 degree pos on passenger side and then adjust the caster with the strut bars. I usually set it at 1 positive even though the book calls for 3/4. Remember that was with bias ply tires.
Sometimes you have to go back and forth to tweak the camber and caster to the correct settings. (move one and sometimes the other changes).
Toe in should be 1/8. King pin inclination should be 6-1/2to 7-1/2 for the 66. I think you will find that the kingpin inclination is off by that 2 degrees.

Last edited by Chopt 48; 11-02-2007 at 12:45 AM.
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