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Rotor/Wheel Stud question

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Old Mar 16, 2023 | 08:52 PM
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Rotor/Wheel Stud question

Hello, I ordered new rotors and wheel studs thru Rockauto for a 76 f250 4x4. The holes in the rotors are quite bigger then the studs? My old rotors that i pressed the old studs out of are slightly bigger also, but better? Is that normal? I was excepting a press or slide fit?
 
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Old Mar 16, 2023 | 08:56 PM
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Sounds like you got the wrong wheel studs, you should have to PRESS in the wheel studs. Or use the impact gun and the stack of washers trick to get them seated. Rock Auto strikes again. Do you have 1/2 or 9/16 wheel studs?
 
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Old Mar 16, 2023 | 10:44 PM
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Original will be 1/2 x 20.

I have never had any luck getting studs unless I take them in and match them up. just went through this on my '79 F250 4x4 a month ago, book was wrong.
 
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Old Mar 17, 2023 | 12:12 AM
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Your truck is a 4x4. Do the rotors not just slide onto the hub over the studs which press in from the back of the hub itself ... like is the rotor not just sandwiched between the hub face and the truck wheel? Unless you are replacing hub too, the rotors should just slide on. Once the 8 lugs are tight, the rotor ain't gonna move when you hit the brakes. Does the center hole of the rotor fit the hub center correctly and center the rotor on the hub? I think the 2wd truck's get a hub and rotor combination, but 4x4s have them separate as I recall. .
 

Last edited by tbear853; Feb 7, 2026 at 09:08 PM.
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Old Mar 17, 2023 | 06:10 AM
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On the front of a 3/4 4wd, the rotor and hub are held together tightly BY the wheel studs. So NO the rotor does just not slip off /on like newer vehicles now days. You have to drive out the wheel studs to separate the rotor from the hub.


 
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Old Apr 5, 2023 | 06:56 PM
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Thanks i ended up having to reuse my old studs, went to napa, carquest and oriley nobody had them? Thanks for the help
 
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Old Feb 7, 2026 | 12:28 PM
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In the last 26 years owning SD trucks I used 100 ft lbs for my torque setting I'm thinking 140 is a little much.
Denny
 
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