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Looking to find out what part of an early 30's axle shaft is considered the "hub". Trying to identify what I believe is an early 32 axle. It does have the 3/4" nut but no where on the shaft can I find a 1.130 measurement.
Steve D
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Joined: Nov 2001
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The 1.130 measurement is the outside diameter at the splines. That is the part that slides into the gears.
How Sweet the roar of a Chevy four!
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Thank you Chipper. I am familiar with the spline measurement being referred to as major (outer) and minor (inner) measurements but not a "hub".
Steve D
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From Bill Barkers Site: https://1931chevrolet.com/specs14.htm the 1.130 is shown for a 25-29 . The difference for early and late 32 is the "HUB" measurement . Where is that measurement taken? The shaft I have does have the correct spline 1.225 for a 32.
Last edited by m006840; 08/30/23 09:49 AM.
Steve D
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Your post of "where on the shaft can I find a 1.130 measurement" confused me and still does.
The August 1932 parts book shows a rear hub PN 358016 for Series AD, AE, B with "(Outer End Shaft Hole 1.033 I.D.)" PN 369559 listed for Series B with "Outer End Shaft Hole 1.127 I. D.)". Is that what you were referring to as 1.130"?
I don't know where on the axle shaft that the hub outer end shaft hole is located when installed. Installing the proper hub should allow it to be determined.
How Sweet the roar of a Chevy four!
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Somehow when i did a google search and I found a listing chart you did on the Chat site and it listed the measurements and included "hub 1.130" so I thought that somewhere on the shaft I would find a corresponding measurement to determine the hub fitment . From the above chart you did for Bills site i see that the 1.130 is the outer spline diameter for25-29. On the same chart is listed the hub measurements and the late 32 shaft is listed as 1.375. Don't really want to remove a hub from my 32 to determine if any of the three axle shafts I have are early or late so I am hoping that somehow I can measure the shaft to determine what I have-early or late.
Steve D
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Steve, not sure if you have these 1932 axle specs,
Diameter at bearing. 1.575”
Thread size 1 9/16”. Would be bearing retainer nut thread.
Diameter inner packing 1.390”
Wheel bearing bore size. 1.575”
Will see if I can dig up some information. Later
JACK
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I appreciate that Jack but probably easier for me to just buy a 3/4" nut to see if it fits. A link to the chart I referenced is in a previous post.
Steve D
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All good Steve, they are the early 1932 axle specifications, I vaguely remember some one had issues with the oil seal leaking on their axles, early to late 1932 axle swaps, so the end thread and oil seal diameters , and hub and axle taper diameter look to be the differences.
You could just use a vernier to measure the end threads.
JACK
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