Why are coarse thread hub bearings so much cheaper? - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 06-07-2013, 05:40 AM Thread Starter
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Why are coarse thread hub bearings so much cheaper?

I have an 04 F250 4x4 and need a hub bearing. I need fine thread and a timken at autozone is $305. Its only $170 for coarse thread. Does anyone know if the wheel studs are the same size where they are pressed in? I was thinking about taking all my wheel studs out of my bad hub and putting them in the coarse thread hub so I could save the money. I would just get different lug nuts but due to my wheels having no lug nut clearance I have to use spline drive nuts. I know rock auto has the fine thread ones for $175 but I like the idea of autozone have a 3 yr warranty without having to deal with mailing anything and waiting. Thanks for any help?
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post #2 of 7 Old 06-07-2013, 05:47 AM
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Many have asked
from what I gathered

$ there is no rhyme or reason for the difference

you can't swap studs as far as I have read but IDK why since they are likely pressed in the only reason they wouldn't be swappable if the diameter ?

if you find out different post back

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post #3 of 7 Old 06-07-2013, 05:58 PM Thread Starter
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Im going to buy the cheaper coarse threaded one and a single fine thread stud for my truck to test it. Will let you know how it goes.
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post #4 of 7 Old 06-08-2013, 01:13 PM
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If im understanding correctly, it is possible.
My 03 dually front hubs use course threads but wheels have fine threads. I just removed my dually spacers to run srw wheels on the front.
Tapped the old studs out and put fine thread studs back in without issue. Studs are same size, just different threads


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post #5 of 7 Old 06-11-2013, 06:15 PM Thread Starter
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so I bought the hub with coarse threads and also purchased 1 fine threaded stud. Pounded one out and the new fine threaded one went right in. Took my hub off and pouned out 7 more and put them in using a stud install tool. If you dont know what the tool is it looks like a small bearing with a cone shape on one side that a lug nut fits into and you just use an impact and the lug nut will seat the new stud. Make sure you use a brass hammer to drive the studs out so you dont damage them you will need to re install them if you ever have to warranty the hub.
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post #6 of 7 Old 06-21-2013, 03:25 PM
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Im pretty sure the Coarse threads are cheaper to make.
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post #7 of 7 Old 06-21-2013, 11:04 PM Thread Starter
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i dunno maybe they are from the factory they are both $4.99 each at o'reillys coarse or fine
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