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Alignment Advice Please

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Old Mar 5, 2020 | 04:11 PM
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Default Alignment Advice Please

Hello All,

1967 Corvette. Notice that the rear camber and toe are off. The (National Chain) alignment shop chose not to proceed with the rear, although they did get the front right.

Anyway, the rear wheels are leaning in at the top. If I adjust the camber and pull the wheels straight up and down, which way would the toe measurement go? Seems to me it would push the toe out a bit, maybe into spec?

Your opinion?

Thanks!


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Old Mar 5, 2020 | 04:32 PM
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That is correct however that much change in camber might make it too toed out.
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Old Mar 5, 2020 | 05:03 PM
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Prior to my last alignment my '66 was a "little loose" but took it to a Vette specialty shop and they corrected the alignment. The current setting will be something I will be sure get reestablished when the time comes for my next alignment. So, for what it's worth, here is the print out of my new values. It may or may not be of use for you.




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Old Mar 6, 2020 | 07:48 AM
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Originally Posted by webfiero
Prior to my last alignment my '66 was a "little loose" but took it to a Vette specialty shop and they corrected the alignment. The current setting will be something I will be sure get reestablished when the time comes for my next alignment. So, for what it's worth, here is the print out of my new values. It may or may not be of use for you.



These numbers look strange to me.
Are you happy with that little caster on the front?
I'd prefer some slight negative camber, also.
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Old Mar 6, 2020 | 08:11 AM
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1967 Chevrolet Corvette Alignment Specification

Front Caster 1.0±0.5 1±½ Front Camber 0.75±0.5 ¾±½ Front Toe (degrees) 0.5°±0.13° Front Toe (inches) 0.25±0.06" Rear Camber -0.5±0.5 -½±½ Rear Toe (degrees) 0.25°±0.13° Rear Toe (inches) 0.13±0.06"
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Old Mar 6, 2020 | 08:26 AM
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Originally Posted by 68ssconv

1967 Chevrolet Corvette Alignment Specification

Front Caster 1.0±0.5 1±½ Front Camber 0.75±0.5 ¾±½ Front Toe (degrees) 0.5°±0.13° Front Toe (inches) 0.25±0.06" Rear Camber -0.5±0.5 -½±½ Rear Toe (degrees) 0.25°±0.13° Rear Toe (inches) 0.13±0.06"
These numbers are fine for bias ply tires- not so good for modern radials.
But, do whatever you wish.

Last edited by davekp78; Mar 6, 2020 at 08:28 AM.
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Old Mar 6, 2020 | 08:42 AM
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Midyear alignment specs for normal driving on radial tires have been posted here dozens of times:

Front camber: 0*

Front Caster: 2.5* positive (if you can achieve it)

Front Toe-In: Zero to 1/16" TOTAL Toe-In.

Rear Camber: 1/2* Negative

Rear Toe-In: 1/32" per side
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Old Mar 6, 2020 | 09:53 AM
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Have there been any rear suspension repairs? Is ride height correct? Have camber bolts slipped resulting in maximum negative camber? Reading could indicate rear of car is squatted down. Its unusual to have both sides so far out of spec.
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Old Mar 6, 2020 | 09:57 AM
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The only guy I trusted to do alignments on these cars just retired--so I took over and did it myself. I bought a quality caster/camber gauge from Jegs, but made a fixture to set the toe and thrust angle. I can post up pics if desired.
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Old Mar 6, 2020 | 04:18 PM
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Originally Posted by SupremeDeluxe
The only guy I trusted to do alignments on these cars just retired--so I took over and did it myself. I bought a quality caster/camber gauge from Jegs, but made a fixture to set the toe and thrust angle. I can post up pics if desired.
Yes, photos please. Thanks!
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Old Mar 6, 2020 | 04:20 PM
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Originally Posted by Kevova
Have there been any rear suspension repairs? Is ride height correct? Have camber bolts slipped resulting in maximum negative camber? Reading could indicate rear of car is squatted down. Its unusual to have both sides so far out of spec.
Yes. Most of rear suspension was replaced by previous owner. Not yet aligned. Camber bolts are installed at max negative.
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Old Mar 6, 2020 | 06:23 PM
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I just did my camber this week. Not too difficult. I followed these instructions.

Ed
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File Type: pdf
Set_Rear_Wheel_Camber.pdf (171.8 KB, 158 views)
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