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Challenger SRT Hellcat
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Discussion Starter · #4 ·
Yes 100-7734 talked to ARP today about them 1/2 inch longer then stock, big question is what is the diameter of the stud where it is knurled? If ours are 6.25 or 6.26 these will work. If not it will crack the hub. I bought two stock ones from Dodge dealer and have my tire shop mic them to see, fingers crossed.
 

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Yes 100-7734 talked to ARP today about them 1/2 inch longer then stock, big question is what is the diameter of the stud where it is knurled? If ours are 6.25 or 6.26 these will work. If not it will crack the hub. I bought two stock ones from Dodge dealer and have my tire shop mic them to see, fingers crossed.
That's way above my paygrade... ;)

I'm guessing that the ARP part will fit, as well as the one from Dorman. But, as you're doing, it's much safer to triple check than splitting your hub :(

Good luck and let us know how it turns out.
 

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Dream: a drag slick so huge it fills the wheel well completely, but doesn't rub. In typical Mopar fashion, we have plenty of room in the wheel well. It would be nice to see tires for 20" wheels that would fill that. It would look outrahgeous.
 

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Just to finish this thread with part #s for search use....

Stock Length Studs
Mopar #
6507915AA
Dorman #
610-502 - .630" Knurl
Napa #
641-2804 - 16.02mm Knurl - 50mm Length

Longer Length Studs
ARP #s - .625" Knurl (15.875mm)
100-7734 - 1/2" longer than stock - 62.7mm L
100-7735 - 1" longer than stock - 75.4mm L
Napa #
641-2806 - 15.93mm Knurl - 73.4mm Length
One side of head needs trimmed. See pics.
 

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Adding to this thread.

Doorman now has wheels studs that are 73.4mm

about 3/4” longer than stock

part number : 610-509
Price: $59.99 for 10

these are a direct fit and do not require trimming the back of the head.
 

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Adding to this thread.

Doorman now has wheels studs that are 73.4mm

about 3/4” longer than stock

part number : 610-509
Price: $59.99 for 10

these are a direct fit and do not require trimming the back of the head.
Your Dorman part # 610-509 is the same exact part as a NAPA # 641-2806

I only trimmed the head to match the exact clearance as a factory stud. Untrimmed you lose about half the clearance, which I assume will rub if a bearing ever goes bad.
 

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Your Dorman part # 610-509 is the same exact part as a NAPA # 641-2806

I only trimmed the head to match the exact clearance as a factory stud. Untrimmed you lose about half the clearance, which I assume will rub if a bearing ever goes bad.
Good to know! Yeah, HHP gave me the part number, said no trimming needed and they bolt on as is. I’m putting these in brand new hubs. I might end up throwing them through the bench grinder. The part bumper I listed above is available at autozone and advance auto as well if folks aren’t close to a Napa. Same price
 

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I did the same thing.
 
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