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How to remove rear wheel studs


tjbev21

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Oh man I have done this more times than most...

 

Remove wheel

Remove axle nut (140ft/lbs)

Remove brake caliper, brake caliper bracket and rotor. Make sure your emergency brake is off before trying to yank off the rotor. If it is stuck on the emergency brake, release the shoes with the adjustment from behind the rubber plug on the back of the hub.

Remove ABS sensor. Be careful not to snap off the bolt. Pro tip, when reinstalling the hub, make sure the stupid POS sensor doesn't fall down in between the sandwich. Otherwise you will have to unblot and rebolt what you just did.

Remove four bolts from the back of the carrier that holds the wheel bearing/hub unit. These are a bit of a pain to get to. Make sure you have plenty of varying lengths of socket extensions. (58 ft/lbs)

 

The bearing/hub slides off the axle with the studs. If your hub is frozen on the carrier, you will need a puller of some kind. This likely means removal of the parking break components. What I figured out was that I could use my super basic HF strut spring compressors as pullers by placing the long bolt on the brake backing plate and the threaded "claw" behind the hub.

 

Take the unit to a shop and have them press out the old and press in the new. Do not use nuts and washers to seat the new studs. Read this case study for cause and effect.

http://www.metalconsult.com/articles/Wheel%20Stud%20Bolt%20Failures.pdf

 

 

Add some anti-seize to the threads and torque the lugs to 81 ft-lbs. After the first initial drive, double check the torque.

 

Do it the right way and don't risk the type failures I have had;

http://legacygt.com/forums/showthread.php/5-sheared-studs-and-wheel-falls-off-141388.html

 

-Rob

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I agree with Rob. You shouldn't pull studs through with a nut and washer stack. They should always be pressed in from behind. It's not that you'll definitely have a problem but it's good practice to push studs through.

 

I don't know if there is room, but you could do this using a sturdy C-clamp and a deep socket.

[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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^ I read all your posts about what happened. Thanks for the info and Im sorry to hear what you had to go through

 

Thanks. In the end it was a learning experience. I'm just trying to share what I have learned. I have on a few occasions replaced studs on my impreza the shortcut way as well. Never again for me.

 

-Rob

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Why do you need to replace the stud ?

 

Use anti-seize compound on the threads of the lug nut and stud. I learned that lesson years ago.

305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD).  CHECK your oil, these cars use it.

 

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And if you do, you MUST reduce the torque applied by the correct factor depending on the lube.

 

-Rob

 

Most lubes will list this value, but if there is no notification, you can assume ~15% less torque.

[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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  • 1 month later...
Oh man I have done this more times than most...

 

Remove wheel

Remove axle nut

Remove caliper

Remove brake rotor (if it is stuck on the emergency brake, release the shoes with the adjustment from behind the rubber plug on the back of the hub)

Remove ABS sensor

Remove four bolts from the back of the carrier that holds the wheel bearing/hub unit.

 

-Rob

 

I just did this again (hopefully for the last time) and updated my instructions

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  • 5 years later...

I replaced my bearings/hubs again and have updated my posts above.

 

Most lubes will list this value, but if there is no notification, you can assume ~15% less torque.

 

Right. I have changed my opinion on this. I use anti-seize with standard torque spec, so effectively I am running about 20% higher than spec'd torque values. After my experience I have learned under torquing is far more problematic than over torquing. I now clean my wheel studs and lube with anti-seize once every couple of years. The dry torque specs assume a perfectly clean thread. Any bit of dirt will give false high reading, which could lead to under torqued lugs. A lubed thread will be more consistent.

 

BTW, this is more than I ever wanted to worry about lug nuts, but so far so good. :)

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