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Re: 5/8" wheel studs
[Re: lancer493]
#3001484
01/03/22 01:18 PM
01/03/22 01:18 PM
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Joined: Jan 2003
Posts: 19,359
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,359
Las Vegas
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Finding a shop in your area willing to do it is likely not gonna be easy . We have sent a couple pairs back to Strange to get done. Not all that expensive other than shipping..And yes it should be done on almost every drag car IMO
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: 5/8" wheel studs
[Re: Al_Alguire]
#3001505
01/03/22 01:39 PM
01/03/22 01:39 PM
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Joined: Aug 2003
Posts: 4,974
new jersey usa
11secdart
master
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master
Joined: Aug 2003
Posts: 4,974
new jersey usa
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I broke my 1/2 studs years ago and they were only a year or so old, I have Mark Williams Axles I sent them to them they installed 5/8 studs and reheat treated the axles it wasn't much at all a couple hundred maybe , I haven't had a problem since. I had the Holeshot wheels custom made for my application last year and one of the options was having the stud holes made for 5/8 studs which I had done.
Last edited by 11secdart; 01/06/22 09:48 AM.
68 Dart 410 / 904
92 D150 original owner
21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4
23 Audi Q5
16 Honda HRV
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Re: 5/8" wheel studs
[Re: lancer493]
#3001576
01/03/22 03:50 PM
01/03/22 03:50 PM
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Joined: Jan 2003
Posts: 11,707
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,707
Portage,michigan
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Ran a heavy 9 sec car using a brake for years never had any issues with 1/2 studs. Must have just been lucky
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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Re: 5/8" wheel studs
[Re: B3422W5]
#3001595
01/03/22 04:13 PM
01/03/22 04:13 PM
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Joined: Jan 2003
Posts: 8,021
Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,021
Tulsa OK
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My understanding is that drag radials are much harder on the studs as well.
When I moved to a Dana in my car I went ahead and jumped up to the larger stud.
68 Barracuda Formula S 340
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Re: 5/8" wheel studs
[Re: lancer493]
#3001651
01/03/22 04:32 PM
01/03/22 04:32 PM
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Joined: Jan 2003
Posts: 17,840
S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,840
S.E. Michigan
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If you all could draw a line in the sand and say "this is really the point you need 5/8 studs", what would it be?
(Other than "just broke the 1/2", now it's time")
Rich H.
Esse Quam Videri
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Re: 5/8" wheel studs
[Re: ZIPPY]
#3001673
01/03/22 05:36 PM
01/03/22 05:36 PM
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Joined: Jan 2003
Posts: 8,021
Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,021
Tulsa OK
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I'd say whenever you upgrade axles or rear end go ahead and upgrade, especially on a radial. Its the best and cheapest time to do it. Also most of us don't ever plan to make our cars slower, sure it happens but rarely on purpose.
Last edited by Bad340fish; 01/03/22 05:39 PM.
68 Barracuda Formula S 340
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Re: 5/8" wheel studs
[Re: Bad340fish]
#3001800
01/03/22 11:22 PM
01/03/22 11:22 PM
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Joined: Dec 2005
Posts: 11,524
Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,524
Fulton County, PA
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I would do it on any drag race rear or when specing axles. Small to no extra cost on new parts. So much nicer.
Need? 10s, 1.50 60', >2500#, transbrake, clutch, >600HP, and/or radials. It's one of those decisions that's really a no brainer.
If the results don't match the theory, change the theory.
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Re: 5/8" wheel studs
[Re: dvw]
#3001872
01/04/22 09:12 AM
01/04/22 09:12 AM
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Joined: Feb 2004
Posts: 34,870
S.E. South Dakota !
bigdad
Still Posting A Lot
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Still Posting A Lot
Joined: Feb 2004
Posts: 34,870
S.E. South Dakota !
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ounce of protection = pound of cure
The lips of fools bring them strife, and their mouths invite a beating.Proverbs 18:6
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Re: 5/8" wheel studs
[Re: bigdad]
#3001884
01/04/22 09:54 AM
01/04/22 09:54 AM
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Joined: Jan 2003
Posts: 4,270
Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,270
Morrow, OH
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Remember that an improperly torqued stud will be much more susceptible to breaking than a properly torqued stud - both loose and too tight.
Me - I run 11/16 Mark Williams studs. But the threads are 5/8.
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: 5/8" wheel studs
[Re: markz528]
#3001912
01/04/22 11:20 AM
01/04/22 11:20 AM
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Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
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I ran 1/2" studs on my cuda for several years w/ no problems. 3800 lbs on drag radials running mid 9s. Footbraking 1.32 sixty foots.
I upgraded to 5/8" studs when I added nitrous. Now it twists 35 spline axles instead, lol.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: 5/8" wheel studs
[Re: an8sec70cuda]
#3001947
01/04/22 01:15 PM
01/04/22 01:15 PM
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Joined: Sep 2003
Posts: 19,342
north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,342
north of coder
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stoopid old man question of the day.......... when going with 5/8" studs, how does one modify the wheel ? if the wheel has a "cone seat" style lug nut, just drilling the hole to 5/8" and using a 5/8" "flange nut" will work ? if the wheel has an 11/16 "shank style" nut, does one need a piece of 1/32" wall tubing to take up the difference ? do you need to use "hub centric" rings for the difference in diameter between the wheel center hole and the axle hub diameter ? i have often wondered about what else may need to be done when using 5/8" studs, but never asked. try not to beat on me too bad for asking.  
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Re: 5/8" wheel studs
[Re: moparx]
#3001967
01/04/22 01:43 PM
01/04/22 01:43 PM
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Joined: Jan 2003
Posts: 17,840
S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,840
S.E. Michigan
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I'll also raise my hand just as a clueless idiot, without any age references....
Every vehicle I've seen them on had aftermarket lug centric wheels.
(Which is okay and all, unless the stock look is desired)
Rich H.
Esse Quam Videri
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Re: 5/8" wheel studs
[Re: moparx]
#3001997
01/04/22 02:39 PM
01/04/22 02:39 PM
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Joined: Jan 2003
Posts: 4,270
Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,270
Morrow, OH
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stoopid old man question of the day.......... when going with 5/8" studs, how does one modify the wheel ? if the wheel has a "cone seat" style lug nut, just drilling the hole to 5/8" and using a 5/8" "flange nut" will work ? if the wheel has an 11/16 "shank style" nut, does one need a piece of 1/32" wall tubing to take up the difference ? do you need to use "hub centric" rings for the difference in diameter between the wheel center hole and the axle hub diameter ? i have often wondered about what else may need to be done when using 5/8" studs, but never asked. try not to beat on me too bad for asking. I agree all the 5/8 studs I have seen were on aftermarket wheels. Yes - there is a tube to make up the difference if a true 5/8 stud. Many now (including mine) have the 11/16" shank so no tube is required. Pretty much with this setup you are lug centric not hub centric so no hub adapter.
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: 5/8" wheel studs
[Re: markz528]
#3002002
01/04/22 02:57 PM
01/04/22 02:57 PM
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Joined: Dec 2005
Posts: 11,524
Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,524
Fulton County, PA
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The thread on sleeve style studs are basically long bolts threaded full length that the sleeve then screws over, locking the bolt and providing the proper wear surface for the wheel. I have used them, but avoid them now. Mostly because they are a PIA to use as opposed to a true machined double ended stud. Most aftermarket flat seat race wheels have 11/16" holes. I've had to lightly hone wheels in the past when using the sleeve style.
If you insist on using 1/2" studs, at least use decent, US made parts. I've seen studs made from Chineseium that broke and really shouldn't have.
If the results don't match the theory, change the theory.
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Re: 5/8" wheel studs
[Re: CMcAllister]
#3002127
01/04/22 09:20 PM
01/04/22 09:20 PM
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Joined: Mar 2003
Posts: 9,099
Rogue River, OR
Jeremiah
master
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master
Joined: Mar 2003
Posts: 9,099
Rogue River, OR
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5/8" studs are just a better deal all around. I do have one car that came with bent 5/8 studs in the Dana however it was heavier and running low 9's leaving on the bumper. The brand of studs is unknown.
You definitely want to send the axles out to drill and tap them for 5/8. Those axles are HARD! I would not want the bill for a bunch of burned up mediocre tooling at a local shop.
Also take your brakes into account especially if you have disc. It might be wise to send the rotor hats in for modification as well. That or use a step bit..maybe a reamer if you have access to a mill.
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