Sheared/Siezed ARP stud (after having 3 stock studs strip)

[feldy]

I have broke two stock studs myself. Both drivers side front. Even @Guff broke two or 3 and he is completely stock. I keep extras in stock now. I torque down to 89

[sshole]

Originally Posted by feldy

I have broke two stock studs myself. Both drivers side front. Even @Guff broke two or 3 and he is completely stock. I keep extras in stock now. I torque down to 89

In all seriousness, I have also broken a few studs on this and previously owned Subarus. I try to keep at least 2 extra studs in my garage now.

What I'm thinking happened (along with a few others in this thread) is the open ended nuts allowed rust to form on the stud where the nut threads weren't making contact with the stud threads. When you backed the nut off, it got caught in this rust and then "welded" the nut to the stud, forcing you to break the nut and stud off.

Keep your threads clean and this shouldn't happen. Also try to switch to closed nuts.

[SomeoneWhoIsntMe]

are you putting them on crooked?

you should be able to spin them on by hand all the way until they hit the wheel, then you snug them up with a 1/2" ratchet and then torque in sequence to 80ftlbs edit: or 75ftlbs, or 90ftlbs, or whatever you want to believe.

I can't believe that you broke 4 studs in such a short time and there's not some element of user error here.

[Ammonia]

I had a stud shear off yesterday. Apparently the tuner lugs were loose though, so that may have been the cause.

[feldy]

Both times my lugs broke was with the factory lugs.

[robot]

Originally Posted by sshole

In all seriousness, I have also broken a few studs on this and previously owned Subarus. I try to keep at least 2 extra studs in my garage now.

What I'm thinking happened (along with a few others in this thread) is the open ended nuts allowed rust to form on the stud where the nut threads weren't making contact with the stud threads. When you backed the nut off, it got caught in this rust and then "welded" the nut to the stud, forcing you to break the nut and stud off.

Keep your threads clean and this shouldn't happen. Also try to switch to closed nuts.

This...

Why are you using open ended lug nuts?

[Roxy86]

Originally Posted by robot

This...

Why are you using open ended lug nuts?

Because ARP studs are extended.
Also, if you are running aftermarket wheels, can run oem lug nuts.

[qoncept]

I'm using the same lugs on ARP lengthened studs without antiseize and haven't had any problems. My wheels are off every couple weeks at least, though.

[Kostamojen]

Originally Posted by qoncept

I'm using the same lugs on ARP lengthened studs without antiseize and haven't had any problems. My wheels are off every couple weeks at least, though.

Have you done any racing/hard driving?

[mav1178]

Originally Posted by Kostamojen

Have you done any racing/hard driving?

ARP studs.

Track events once a month or more.
Wheels swapped out about 2x per month.
Open-ended lug nuts.
A few long roadtrips across California and other places.

Every time I change wheels, I wipe the studs clean. Been doing this since my S13 days, when I did the same thing every time I changed my wheels out (Nismo extended studs).

No issues with my ARP studs after about 6 months. Close to 10k miles on the car in that timeframe.

-alex

[qoncept]

Originally Posted by Kostamojen

Have you done any racing/hard driving?

Just a few autoxes since the studs were installed. 245 race tires.

[Kostamojen]

Originally Posted by mav1178

ARP studs.

Track events once a month or more.
Wheels swapped out about 2x per month.
Open-ended lug nuts.
A few long roadtrips across California and other places.

Every time I change wheels, I wipe the studs clean. Been doing this since my S13 days, when I did the same thing every time I changed my wheels out (Nismo extended studs).

No issues with my ARP studs after about 6 months. Close to 10k miles on the car in that timeframe.

-alex

I will have to try wiping the studs clean as well.

Should buy a new torque wrench too...

I'm still wondering if I should be looking into better quality lugs.

[qoncept]

Originally Posted by Kostamojen

I will have to try wiping the studs clean as well.

Should buy a new torque wrench too...

I'm still wondering if I should be looking into better quality lugs.

Something I really should have mentioned - since putting the ARP studs in, I HAVE noticed my Dewalt impact has a little more trouble breaking them free. I'm assuming it must be due to the extra contact the longer stud is making. Another reason I wish the ARP studs were maybe half an inch shorter. 80ft lbs is right on the borderline of what my impact can break.

Also, half of the time I'm taking the wheels off the car is hot after autox. Not sure if it makes a difference.

[mav1178]

Originally Posted by Kostamojen

I will have to try wiping the studs clean as well.

Should buy a new torque wrench too...

I'm still wondering if I should be looking into better quality lugs.

My sequence is:

Break lugs free with breaker bar
Change wheels
Hand thread lugs on at least 3-5 turns
Impact gun to tighten (less than 60 ft-lbs torque)
Torque wrench to finish

I clean the studs about every 2-4 weeks, or whenever the wheels come off. Use anti-sieze with caution, as it tends to collect contaminates and make the threads dirtier.

Also: cheap lugs often have coating on them that are also on the inside. They collect on the threads.

I guess I should add a +1 for ARP studs: I have KICS R40 lugs, and earlier this year I managed to almost cross-thread all 5 studs on the same corner because the wheels weren't torqued 100%. The lugs ended up being junk, however the ARP studs were fine and held up okay.

-alex