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Old 10-24-2020, 06:53 PM   #1
richard crow
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Default spindles

what is the differance between 37-41 41-48 spindles can 41-48 be used on a model a axle to mount hydl brakes
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Old 10-24-2020, 07:11 PM   #2
rich b
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Default Re: spindles

Later model spindles have larger (taller) bushings along with a different appearance. They will fit a Model A axle.
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Old 10-24-2020, 09:11 PM   #3
Fordors
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Default Re: spindles

As rich b said, yes they can be used on a Model A axle, but be advised that the ‘37-‘41’s (also known as round backs) use a king pin 5 1/2” long and the ‘42-‘48 spindles (square back) take a 6” long k/p. You will want the correct k/p set for the spindles you choose.
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Old 10-25-2020, 12:06 AM   #4
Randy in ca
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Default Re: spindles

Here's a picture I've posted a couple of times before that shows the differences that others have mentioned. Basically the 1942-48 version are beefier than the 1937-41 but otherwise interchangeable.


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File Type: jpg 1937-41 Ford spindles vs 1942-48.jpg (64.9 KB, 112 views)
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Old 10-25-2020, 04:39 PM   #5
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Default Re: spindles

all that answered thanks for the great info
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Old 10-25-2020, 05:23 PM   #6
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Default Re: spindles

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The later one have a generally square appearance, the 37-41 are commonly called roundback.
Would it be correct to assume the later ones wear more slowly due to the longer bushes? (Everything else being equal). Probably made longer to compensate for the vehicles getting heavier???
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