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Diameter of headlamp actuator rod?

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Old 05-09-2016, 11:10 AM
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OlDirty89
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Default Diameter of headlamp actuator rod?

Hello,

actually I´m a ´69 Tbird driver I came here, because our cars both have the headlight actuators which work basically the same. Parts for the Tbird actuators are very hard to find, so I want to figure out, whether I can use some of the Corvette parts for mine.
Long story short, I want to replace the rod seal and am pretty confident the corvette seal will fit.
All I need to know is: What´s the diameter of the rod itself?

Thank you very much!
Old 05-09-2016, 11:32 AM
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0Willcox Corvette
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Just measured it... .3125 on my mic... or 5/16.
Old 05-09-2016, 12:34 PM
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OlDirty89
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Ok, thanks! The Tbird is the same. Only problem is... the top isn´t bolted. So it´s hard to get the seal over it. Or I just missed something.
Old 05-09-2016, 03:00 PM
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Originally Posted by OlDirty89
Ok, thanks! The Tbird is the same. Only problem is... the top isn´t bolted. So it´s hard to get the seal over it. Or I just missed something.
On the end of the actuator on a corvette, there is a clevis. The clevis unscrews from the rod to replace the seal.

In the old days when we couldn't get a new boot, and the actuators were working fine except for the rod shaft seal, we would use baby bottle nipples.. We would just burn a slightly smaller hole in the end and then glue the backside to the actuator. That might be a option for you too.

Old 05-10-2016, 03:42 AM
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OlDirty89
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Originally Posted by Willcox Corvette
On the end of the actuator on a corvette, there is a clevis. The clevis unscrews from the rod to replace the seal.

In the old days when we couldn't get a new boot, and the actuators were working fine except for the rod shaft seal, we would use baby bottle nipples.. We would just burn a slightly smaller hole in the end and then glue the backside to the actuator. That might be a option for you too.
I think the one on the Tbird can´t be unscrewed.
But I found another good way to seal it. I will try it with a grommet (MS35489-9). A grommet should also fit over the top of the rod.

Last edited by OlDirty89; 05-10-2016 at 03:42 AM.
Old 05-10-2016, 04:56 PM
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And one more question: What´s the diameter of the dust boot where it´s attached to the housing itself?
Thanks!

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