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| Fiero wheel studs sizes (Page 1/1) |
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Meatpiemonday
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OCT 25, 12:44 PM
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I'm about to start my Lebaron brake upgrade and when I was about to press in my longer studs I noticed that I had 2 different sized wheel stud nurled bases. One hub rotor had the smaller stud i assume a factory replacement rotor and the other one had the larger wheel studs I assume aftermarket part rotor. Has anyone come across this and if so what part number wheel stud did you use for the larger stud
Thanks
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fieroguru
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OCT 25, 01:36 PM
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If you are converting OEM rotors to hubs, then the longer stud is Dorman PN 610-323 Qty:10
However, if you are using new aftermarket hubs, then the holes for the wheel studs are sometimes larger and you need another stud option. Here is a side by side of the stock fiero wheel stud and the one from the aftermarket hubs with the larger shank:
So if stock fiero wheel studs don't fit the hub hole, then use this part number: Dorman 610-427. It has a stepped shank and will fit the hole in the rotor while still retaining the M12-1.5 thread pitch.
Here is what these studs look like installed. Notice it has slightly more than 1 7/16" threaded length, but more importantly notice the protruding shank:
To use these wheel studs you will need to bevel or enlarge the backside of your brake rotor holes so they slide over the enlarged shank.
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pmbrunelle
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OCT 25, 02:37 PM
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| quote | Originally posted by fieroguru:
So if stock fiero wheel studs don't fit the hub hole, then use this part number: Dorman 610-427. It has a stepped shank and will fit the hole in the rotor while still retaining the M12-1.5 thread pitch. |
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That might work for people with 5x115mm GM hubs who would wish to convert them to 5x4.5" by machining oversized stud holes, slightly offset from the existing ones.[This message has been edited by pmbrunelle (edited 10-25-2020).]
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Meatpiemonday
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OCT 25, 03:28 PM
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Once again this website and the experts who answer questions like mine...THANK YOU! Thanks for the photos and part numbers. I will be getting those wheel studs tomorrow!
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