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Old 05-03-2012, 10:54 AM
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King pin size doesn't match up with Ford axle

Let's hope this doesn't turn into a book I have a old ford straight axle was told it was a 1938 it had the older ford spindles (29) which gave the car a negative camber look which the guy that original builder liked but I couldn't stand. I bought a spindle and kingpin kit from Speedway and sent to the local frame and axle shop to have them align it before I put it back on the car. Here is the issue the ford pins are 0.810-3 and of course match the Spindles but the knuckle diameter is 0.858 and the pin was one half inch shorter. So, I need a fix... should I get the new spindles bored out to the 0.858 and have some new pins turned to match. Is there something I'm missing, I am a little reluctant to weld bushings in the forged axle have them bored to the 0.813 fearing hardening. Any Ideas?

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Old 05-03-2012, 02:10 PM
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First place do not weld the bushings in the axle..Those are a press fit..Also there is a notch in the bushing to accept the kingpin retention bolt..Now by the time you find someone to do this by that some ole guy that knows how it may be easier and cheaper to just bite the bullet and get a new axle..I know you did not want to hear that...

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Old 05-03-2012, 04:26 PM
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Thanks, you are right I don't have the dough for a new axle right now, even if I return the spindle/king pin set and the steering arms to speedway. what if I ream the new spindles to the 0.858 and have a chev kingpin (they're bigger) turned down to the same 0.858?
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Old 05-03-2012, 04:59 PM
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I see it a little different, if the parts you bought are correct, that means the axle isn't. It must not be that the axle isn't what you thought it was.

Can you ream stuff and weld stuff and make something work, I guess so but what if the king pin inclination isn't right?

The whole "negative camber" deal sounds odd. From what I can remember Model A thru 48 Ford spindles will interchange.

This is a good overview of these spindles.Early Ford Spindles fitting early Ford axles

You need to confirm that what you have is indeed a 1938 Ford Axle.

Do you you have any photos?

Brian
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