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Re: 5/8" wheel studs [Re: d330] #3002167
01/04/22 11:07 PM
01/04/22 11:07 PM
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Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
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For those that want to run 1/2 inch studs, reaching the best clamp load is a must. Check on final torque specs and talk to experts about what lube if any to use. Think of them like rod bolts, because they are affected the same way. Thread friction is a large part of the torque spec. Get that wrong and clamp load will be off, allowing twisting forces to break the studs.


8.77 153 mph best, 3055 lbs 528 indy 440-1 alky
Re: 5/8" wheel studs [Re: d330] #3002179
01/04/22 11:32 PM
01/04/22 11:32 PM
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MI, usa
dvw Offline
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Part of the issue is the amount of surface area between the wheel and rotor. If it's minimal, it takes way more clamping force to keep from bending the studs. Factory steel wheels have the least contact.
Doug

Re: 5/8" wheel studs [Re: d330] #3002198
01/05/22 03:16 AM
01/05/22 03:16 AM
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Fulton County, PA
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CMcAllister Offline
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Originally Posted by d330
I have a 3650 lbs car with a 4 speed runs 9:40s-50s. Low 1:30s 60ft Times. 1/2 ARP bolts without issues.


Good luck.

I have a buddy with a very similar combination. Dead hooks it and controls the 60s in the bellhousing. Car is nearly trouble free at this point. I know what he's gone through with that and helped fix a lot of it.

Last edited by CMcAllister; 01/05/22 03:24 AM.

If the results don't match the theory, change the theory.
Re: 5/8" wheel studs [Re: CMcAllister] #3002200
01/05/22 05:45 AM
01/05/22 05:45 AM
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fredericksburg,va
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I think the shear force of a 8 D finish nail is somewhere in the 5000 pound range, so.. Of course my friends 63 Polara with one of those aftermarket K-frames sheared off a 3/4 grade 8 bolt on the lca just backing-hard turning out of his garage, might have been just loose, the maker did make a brace to get double clamping to fix the issue. Grade 5 is a better stud-bolt to use on axels. I also think the type of wheel used has a lot do with strength, thick (Pro Star type vs thin (Centerline, Borgart), shorter the stud the stronger or less apt to bend over.

Re: 5/8" wheel studs [Re: cudaman1969] #3002214
01/05/22 09:12 AM
01/05/22 09:12 AM
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Marion, South Carolina [><]
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When I first switched to 5/8" studs, I asked around about drilling and tapping my axles myself. EVERYONE said send them back to the manufacturer to have it done. So back to Moser they went. Biggest problem was finding a box to ship them in. I've kept a couple of axle boxes in storage since then, lol. Kind of like header boxes. Don't think about it until you need one, then it's a PITA.

5/8" studs makes changing tires/wheels so much easier too.


CHIP
'70 hemicuda...8 sec street car
'69 road runner 440 w/ Indy SRs
'69 road runner 440-6, 4 speed...Dad's ride
'71 Demon 340 resto project
'73 Chrysler New Yorker
'06 GMC 2500HD LBZ Duramax...toy hauler
Re: 5/8" wheel studs [Re: an8sec70cuda] #3002221
01/05/22 09:45 AM
01/05/22 09:45 AM
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aZLiViN
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I changed because all the cool kids did it…. Honestly it was just one of those things we looked at and thought of as a very good safety upgrade as we entered the mid 9 zone. Pretty cheap protection considering the catastrophic damage that can result from breakage. It should have been done when my dad had the S60 built, but was probably an over-site. Kind of like a billet drum in a 727…. Pretty cheap insurance in the scope of the mayhem that can incur….

Re: 5/8" wheel studs [Re: J_BODY] #3002473
01/06/22 12:33 AM
01/06/22 12:33 AM
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Sac, CA
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What do you guys torque your 5/8" lug nuts to?

Re: 5/8" wheel studs [Re: mopowers] #3002478
01/06/22 01:44 AM
01/06/22 01:44 AM
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Bend,OR USA
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Cab_Burge Online work
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100 to 120 Ft. lbs. wrench up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 5/8" wheel studs [Re: mopowers] #3002490
01/06/22 07:03 AM
01/06/22 07:03 AM
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Tulsa OK
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Originally Posted by mopowers
What do you guys torque your 5/8" lug nuts to?


100


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: 5/8" wheel studs [Re: Bad340fish] #3002505
01/06/22 08:58 AM
01/06/22 08:58 AM
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Marion, South Carolina [><]
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Originally Posted by Bad340fish
Originally Posted by mopowers
What do you guys torque your 5/8" lug nuts to?


100

iagree


CHIP
'70 hemicuda...8 sec street car
'69 road runner 440 w/ Indy SRs
'69 road runner 440-6, 4 speed...Dad's ride
'71 Demon 340 resto project
'73 Chrysler New Yorker
'06 GMC 2500HD LBZ Duramax...toy hauler
Re: 5/8" wheel studs [Re: an8sec70cuda] #3002509
01/06/22 09:20 AM
01/06/22 09:20 AM
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MN
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Originally Posted by an8sec70cuda
Originally Posted by Bad340fish
Originally Posted by mopowers
What do you guys torque your 5/8" lug nuts to?


100

iagree

DDEE1CF5-4CB3-4F1D-9D6B-9894707134E0.jpeg

69 GTX 68 Road Runner
Re: 5/8" wheel studs [Re: JERICOGTX] #3002600
01/06/22 02:05 PM
01/06/22 02:05 PM
Joined: Jan 2003
Posts: 7,382
Tulsa OK
Bad340fish Offline
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Originally Posted by JERICOGTX
Originally Posted by an8sec70cuda
Originally Posted by Bad340fish
Originally Posted by mopowers
What do you guys torque your 5/8" lug nuts to?


100

iagree


I stripped a stud pulling off my race tires at Byron on drag week. So I had to use every Ugga Dugga i had available when I put my race tires on for friday...still haven't taken those tires off ha.


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: 5/8" wheel studs [Re: an8sec70cuda] #3002742
01/06/22 09:57 PM
01/06/22 09:57 PM
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Heaven
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Originally Posted by an8sec70cuda
When I first switched to 5/8" studs, I asked around about drilling and tapping my axles myself. EVERYONE said send them back to the manufacturer to have it done. So back to Moser they went. Biggest problem was finding a box to ship them in. I've kept a couple of axle boxes in storage since then, lol. Kind of like header boxes. Don't think about it until you need one, then it's a PITA.

5/8" studs makes changing tires/wheels so much easier too.


Hahahaha X2 on all this, Chip!


"Any fool can know. The point is to understand"

- A. Einstein
Re: 5/8" wheel studs [Re: EvilB1Dart] #3002756
01/06/22 10:55 PM
01/06/22 10:55 PM
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Fulton County, PA
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CMcAllister Offline
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Many years ago, I got set of axles from a very reputable manufacturer that were beautiful in every way, except the stud holes weren't threaded for the 1/2" studs I intended to use. Yes they were ordered for screw in studs and the studs were even in the box separately.

Oh well, easy fix I thought. After wrecking a 1/2-20 tap and not putting a scratch in the holes, I sent them back. The company apologized, fixed them and life went on.

Last edited by CMcAllister; 01/06/22 10:56 PM.

If the results don't match the theory, change the theory.
Re: 5/8" wheel studs [Re: CMcAllister] #3004161
01/11/22 02:50 PM
01/11/22 02:50 PM
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Posts: 3,797
Richmond, Indiana
19swinger70 Offline
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Questions from a guy that doesn't have a lot of experience drag racing, but is building a car for it:

1. The 5/8" Studs are really only suggested for the rear (drive axles) of the vehicle, not the front too, correct?
2. I have some Weld wheels, and some old Cragar Super Trick wheels that use long threaded shank lug nuts. Will I need to get completely different wheels if I opt for 5/8" studs?

I am asking these questions because I am getting ready to order a Dana 60 OR a Fabricated 9" for my Cuda build - and was already thinking about stepping up to 5/8" studs.


1970 340 swinger. sublime 1967 barracuda fastback BB project 55 Plymouth Project
Re: 5/8" wheel studs [Re: 19swinger70] #3004182
01/11/22 03:42 PM
01/11/22 03:42 PM
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Fulton County, PA
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CMcAllister Offline
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Originally Posted by 19swinger70
Questions from a guy that doesn't have a lot of experience drag racing, but is building a car for it:

1. The 5/8" Studs are really only suggested for the rear (drive axles) of the vehicle, not the front too, correct?
2. I have some Weld wheels, and some old Cragar Super Trick wheels that use long threaded shank lug nuts. Will I need to get completely different wheels if I opt for 5/8" studs?

I am asking these questions because I am getting ready to order a Dana 60 OR a Fabricated 9" for my Cuda build - and was already thinking about stepping up to 5/8" studs.


1) Yes. 1/2" on the front.

2) The holes in the wheels you have should be 11/16" and the shank of a nut for those fits those holes. 5/8" studs also have an 11/16" shoulder in the middle that also acts as the wheel interface. The wheel will slide over those when being installed. The fit should not be sloppy. If it's too tight to install with some wiggling, the holes in the wheels may need to be finessed - honed or filed, don't get the drill out. The studs you purchase need to be sized for the thickness of the wheel center. The shoulder portion needs to protrude out of the wheel some amount - typically ~1/2" - with an appropriate spacer used under the nut.

Strange has a selection of studs for use with all common wheels. Look at that for a better explanation. Personal experience causes me to recommend the one piece machined studs over the bolt with a sleeve style. Or look up the Strange instruction sheet for them.

IMG_E5586[1].JPG
Last edited by CMcAllister; 01/11/22 04:07 PM.

If the results don't match the theory, change the theory.
Re: 5/8" wheel studs [Re: CMcAllister] #3004191
01/11/22 04:20 PM
01/11/22 04:20 PM
Joined: Jan 2003
Posts: 3,797
Richmond, Indiana
19swinger70 Offline
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Thank you for that information - good to know!


1970 340 swinger. sublime 1967 barracuda fastback BB project 55 Plymouth Project
Re: 5/8" wheel studs [Re: CMcAllister] #3004605
01/12/22 03:28 PM
01/12/22 03:28 PM
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Posts: 15,752
north of coder
moparx Offline
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i thank you as well for that chart ! bow
beer

Re: 5/8" wheel studs [Re: moparx] #3004625
01/12/22 04:11 PM
01/12/22 04:11 PM
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Posts: 18,375
Las Vegas
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We torque all ours to 125ft/lbs.


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: 5/8" wheel studs [Re: Al_Alguire] #3004727
01/12/22 08:50 PM
01/12/22 08:50 PM
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Posts: 1,361
Wi.
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pro stock
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125lbs is what i was told also. asked several racers. so that's what I do.

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