Lug Nut Engagement to Lug on Cragar SS 61C?
#3073989
09/03/22 07:57 PM
09/03/22 07:57 PM
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Joined: Jan 2003
Posts: 2,179 Walton, Indiana
TimS
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 2,179
Walton, Indiana
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I’ve used the 61C Cragar SS on my 69 Barracuda Formula S but with long studs. The lug nuts recommended are conical seat 60 degree, Anyone using these wheels and lug nuts on a car with standard lug length. I want to use on my stock 68 Barracuda but afraid there is not enough lug nut to lug engagement. Seems like these things would come loose. Also these are the drilled 5X4 bolt Cragar.
Thoughts or experience with this?
1968 Barracuda Fastback 318-2BBL 904 2.76 Frost Blue Survivor 1970 Roadrunner 440+6 BBL 727 AT 4.10 SG Dana Blue Fire Metallic 1971 Cuda 340-4 BBL 4spd 3.91 SG Curious Yellow 1972 Barracuda 318-2 BBL 904 AT 3.23 1 Legger Tor Red/White Vinyl Top 2007 Dodge Ram 1500 5.7 Hemi AT Patriot Blue 2011 Dodge Challenger RT 5.7 Hemi 6spd 392 SG Triple Black 2014 Dodge Charger RT Max AWD 5.7 Hemi AT 305 Billet Silver
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Re: Lug Nut Engagement to Lug on Cragar SS 61C?
[Re: Bennoel 10]
#3074121
09/04/22 08:51 AM
09/04/22 08:51 AM
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Joined: Jan 2003
Posts: 2,179 Walton, Indiana
TimS
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 2,179
Walton, Indiana
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I've ran crager SS wheels on my 69 swinger for a long time and you need to use the special lug nuts that counter sink into the wheel itself. Don't think over the years I can remember any long studs on a 4" bolt pattern rear end as at that point we would upgrade to a larger bolt pattern as well as other axel's. Maybe something like summer brothers etc. Never had a problem with the correct lug nuts that were supposed/supplied to use with the cragers. Not familiar with the 61C part ?? Probably a manufacturer number ?? Also you say these are the drilled 5x4 bolt circle. Not sure what you mean by that. Did someone drill them or the manufacturer ?? I can post a picture of the specific lug nuts later if needed.
Good luck These wheels aren’t unilug as we are used to in the past. I’ve had too many issues over the years with them coming loose, even after being torqued to spec. Cragar manufacturer now supplies non unilug, drilled versions. Round whole, not egged. Yes. Could you please post a picture of that lug nut when time permits.
1968 Barracuda Fastback 318-2BBL 904 2.76 Frost Blue Survivor 1970 Roadrunner 440+6 BBL 727 AT 4.10 SG Dana Blue Fire Metallic 1971 Cuda 340-4 BBL 4spd 3.91 SG Curious Yellow 1972 Barracuda 318-2 BBL 904 AT 3.23 1 Legger Tor Red/White Vinyl Top 2007 Dodge Ram 1500 5.7 Hemi AT Patriot Blue 2011 Dodge Challenger RT 5.7 Hemi 6spd 392 SG Triple Black 2014 Dodge Charger RT Max AWD 5.7 Hemi AT 305 Billet Silver
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Re: Lug Nut Engagement to Lug on Cragar SS 61C?
[Re: TimS]
#3074227
09/04/22 02:47 PM
09/04/22 02:47 PM
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Joined: Sep 2003
Posts: 19,405 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,405
north of coder
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i believe those lug nuts are the "bulge seat" style, similar to what is used on new[er] factory aluminum wheels. as for thread engagement, i like to see at least 1 1/2 times the stud diameter. so for the factory size of 7/16, [.437] it would be .655. a little more wouldn't hurt, but with a closed end lug nut, you need to be sure the nut has enough thread, and is deep enough internally, so as to not bottom out on the stud before being properly torqued. when i have doubts on something like this, [even after measuring the internal thread depth] i get an extra nut and trim the end off on the lathe, or drill through the end of the nut with a drill slightly smaller than the thread, thereby being able to see just exactly how much thread engagement i have.
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Re: Lug Nut Engagement to Lug on Cragar SS 61C?
[Re: TimS]
#3074411
09/05/22 09:42 AM
09/05/22 09:42 AM
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Joined: Mar 2019
Posts: 177 Ontario Canada
Bennoel 10
member
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member
Joined: Mar 2019
Posts: 177
Ontario Canada
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I've ran crager SS wheels on my 69 swinger for a long time and you need to use the special lug nuts that counter sink into the wheel itself. Don't think over the years I can remember any long studs on a 4" bolt pattern rear end as at that point we would upgrade to a larger bolt pattern as well as other axel's. Maybe something like summer brothers etc. Never had a problem with the correct lug nuts that were supposed/supplied to use with the cragers. Not familiar with the 61C part ?? Probably a manufacturer number ?? Also you say these are the drilled 5x4 bolt circle. Not sure what you mean by that. Did someone drill them or the manufacturer ?? I can post a picture of the specific lug nuts later if needed.
Good luck These wheels aren’t unilug as we are used to in the past. I’ve had too many issues over the years with them coming loose, even after being torqued to spec. Cragar manufacturer now supplies non unilug, drilled versions. Round whole, not egged. Yes. Could you please post a picture of that lug nut when time permits. The lug nuts come with a specific washer that must be used along with the nut. Heard that they are on backorder at the moment. Hope this helps.
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Re: Lug Nut Engagement to Lug on Cragar SS 61C?
[Re: TimS]
#3074433
09/05/22 11:10 AM
09/05/22 11:10 AM
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Joined: May 2019
Posts: 6,250 nowhere
Sniper
master
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master
Joined: May 2019
Posts: 6,250
nowhere
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I've ran crager SS wheels on my 69 swinger for a long time and you need to use the special lug nuts that counter sink into the wheel itself. Don't think over the years I can remember any long studs on a 4" bolt pattern rear end as at that point we would upgrade to a larger bolt pattern as well as other axel's. Maybe something like summer brothers etc. Never had a problem with the correct lug nuts that were supposed/supplied to use with the cragers. Not familiar with the 61C part ?? Probably a manufacturer number ?? Also you say these are the drilled 5x4 bolt circle. Not sure what you mean by that. Did someone drill them or the manufacturer ?? I can post a picture of the specific lug nuts later if needed.
Good luck These wheels aren’t unilug as we are used to in the past. I’ve had too many issues over the years with them coming loose, even after being torqued to spec. Cragar manufacturer now supplies non unilug, drilled versions. Round whole, not egged. Yes. Could you please post a picture of that lug nut when time permits. Unilugs use a cam shaped washer, not the same washer as B10 is talking about.
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Re: Lug Nut Engagement to Lug on Cragar SS 61C?
[Re: moparx]
#3074598
09/05/22 08:36 PM
09/05/22 08:36 PM
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Joined: Jan 2003
Posts: 15,358 Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,358
Omaha Ne
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i believe those lug nuts are the "bulge seat" style, similar to what is used on new[er] factory aluminum wheels. as for thread engagement, i like to see at least 1 1/2 times the stud diameter. so for the factory size of 7/16, [.437] it would be .655. a little more wouldn't hurt, but with a closed end lug nut, you need to be sure the nut has enough thread, and is deep enough internally, so as to not bottom out on the stud before being properly torqued. when i have doubts on something like this, [even after measuring the internal thread depth] i get an extra nut and trim the end off on the lathe, or drill through the end of the nut with a drill slightly smaller than the thread, thereby being able to see just exactly how much thread engagement i have.
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