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Old 05-31-2023, 08:10 AM   #1
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One tire with different sized lug nuts

I have a set of Goodyear ST 225/75R15 tires on my AS. They all have a date stamp of 2421. They all have 3/16" lug nuts. Except for one. Which has a 3/4" lug nut.

Why, I don't know. I don't have a spare but I'm going to buy one with newer 3/16 lug nuts. Then I'll consign the tire with the 3/4s to the spare tire carrier under the frame.

Does this sound like a reasonably sound plan?
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Old 05-31-2023, 08:35 AM   #2
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I have always used these on 'Cloudsplitter".
The difference in wrench size could be result of the missing 'chrome' cover. (AS used them, not sure if they still do"

McGard has always been my choice, a local WNY company with a great history.

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Old 05-31-2023, 08:37 AM   #3
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Do your larger lug nuts have a stainless steel outer layer? My guess is the business end - the internal thread size - is identical on all your lug nuts. The difference is that some are possibly made from stainless steel, while others are plain steel which is wrapped in an outer layer. The solid stainless are better in my opinion, and they are likely the smaller ones you've got. The outer layer adds size to them, and once the outer layer starts to separate can make removing the lug nuts more difficult.
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Old 05-31-2023, 08:47 AM   #4
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I assume you mean 13/16, not 3/16.(??) Three sixteenth is pretty tiny!!
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Old 05-31-2023, 09:16 AM   #5
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In my airstream the spare is resting in a cage beneath the propane tanks and there are no lug nuts securing it while stowed. Once you get a set of 13/16 lugs I suspect the 3/4" will be extras. Probably not a bad idea to hold onto a couple in case you lose one for any reason.
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Old 05-31-2023, 09:29 AM   #6
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If any of your lug nuts have cosmetic chrome outer layer cover get rid of them and spend the money for one piece plated lug nuts. I have experience with the outer cover spinning on the nut making removal with a standard lug wrench impossible. I think this can happen after tire tech over tightens with impact wrench and the damage isn’t apparent until you’re next to the road with a flat tire which cannot be changed.
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Old 05-31-2023, 10:22 AM   #7
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Quote:
Originally Posted by Bluetick View Post
I have a set of Goodyear ST 225/75R15 tires on my AS. They all have a date stamp of 2421. They all have 3/16" lug nuts. Except for one. Which has a 3/4" lug nut.

Why, I don't know. I don't have a spare but I'm going to buy one with newer 3/16 lug nuts. Then I'll consign the tire with the 3/4s to the spare tire carrier under the frame.

Does this sound like a reasonably sound plan?
3/16? Do you mean 13/16?
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Old 05-31-2023, 12:02 PM   #8
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Blue,

I am a bit confused, perhaps becasue my two vintage AS came from the factory with LUG Bolts. When I replaed the axles on my current unit they came with studs and lug nuts - I then discarded the old lug bolts. My previous trailer, 75 Trade Wind, also had lug bolts - all withthe same thread ( 1/2 -20 ?). However, of the 24 lug bolts on the trailer 23 had 13/16 inch hex heads and one had 3/4 inch. (I carried two wrenches and painted the odd one red.) Being the last of many owners I have no idea what happened to casue the mis match.

The important thing is that the lug nuts or bolts are compatible with both the axle and the wheel - tire size is not a factor. (Obviously the tire must fit the wheel, but some cars come with an odd sized spare fitted to a wheel that matches the vehicle.) Years ago, before fancy aluminum wheels, I believe that lug nuts were pretty much the same for a given thread size. Perhaps someone more knowledgeable will chime in and sort this point out.

In your situation you need one piece lug nuts that are compatible with your wheels and match the thread on the axle studs. (I have no exprience but from what I read the two piece nuts with chrome covers are a disaster when they fail.) The hex size does not matter - just make sure your have a wrench that fits.

Good luck,

Whit Nash
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Old 05-31-2023, 12:49 PM   #9
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Be careful out there…. If your AS has wheel STUDS…. which accept lug NUTS… they are likley 1/2-20 threads…and you will need compatible nuts.

BUT… look closely at your Wheel…. does the hole require a conical nut..?? or a “bulge” nut..??…. or some Other type..?? Wheels can vary and require specific shaped nuts…as well as correct threads … and the outer hex can differ as well.

IF you are not knowledgeable about these sort of things…go to your local tire dealer and have them supply new lug nuts which properly fit…or at least advise you WHICH of your current nuts are correct…and purchase complete sets of correct nuts.
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Old 05-31-2023, 04:06 PM   #10
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I have a 2017 and all have the same 13/16" lug nuts.
I doubt the OP has covers in 2018.
I think if it were me, I'd take one of the 13/16" nuts and see if I could swap it on the 3/4" rim. Is it possible that axle was repaired and got different studs? That would be a good test.
The chart on Google says a 13/16" nut fits a 9/16" bolt, while a 3/4" nut fits a 1/2" bolt.
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Old 05-31-2023, 04:51 PM   #11
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McGard is the way to go

Quote:
Originally Posted by ROBERT CROSS View Post
I have always used these on 'Cloudsplitter".
The difference in wrench size could be result of the missing 'chrome' cover. (AS used them, not sure if they still do"

McGard has always been my choice, a local WNY company with a great history.

Bob
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You want to get rid of the factory lug nuts as the chrome covers will give you problems.
Change them all out for McGard. Available on Amazon.
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Old 06-04-2023, 10:36 AM   #12
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I suspect a previous owner needed to replace lugs on one wheel, and all that was readily available was that odd (different) size. Don’t ask me how I suspect this.
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Old 06-05-2023, 03:52 AM   #13
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Quote:
Originally Posted by nilesrob View Post
I suspect a previous owner needed to replace lugs on one wheel, and all that was readily available was that odd (different) size. Don’t ask me how I suspect this.
I think that's likely. But why? Did he strip them? Or if he lost them, how? Stuff like this bothers me and wastes my brain batteries because I keep trying to figure it out.
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Old 06-05-2023, 04:56 AM   #14
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Quote:
Originally Posted by Bluetick View Post
I think that's likely. But why? Did he strip them? Or if he lost them, how? Stuff like this bothers me and wastes my brain batteries because I keep trying to figure it out.
When the cheep shiny covers get damaged the socket you bought especially for the task will no longer werk, someone probably took his angry tool, tore them off and bought another socket that would fit the oddly sized nut he ended up with

Best option for us was... replace once & be done. May seem $$$ but well worth it...IMHO

Bob
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Old 06-06-2023, 03:21 AM   #15
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Quote:
Originally Posted by ROBERT CROSS View Post
When the cheep shiny covers get damaged the socket you bought especially for the task will no longer werk, someone probably took his angry tool, tore them off and bought another socket that would fit the oddly sized nut he ended up with

Best option for us was... replace once & be done. May seem $$$ but well worth it...IMHO

Bob
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McGard lug nuts in a 1/2-20 size seem to only come in 4-packs. What do most people do if they have dual axle, 6 lug wheels? Buy 6 packs?
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Old 06-06-2023, 04:50 AM   #16
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Many have covered this, get rid of the capped lug nuts, install solids. I'll just add what I saw one day.

Trip to local large RV dealership and a guy was setup in THEIR parking lot changing a flat tire on a 5th wheel rig. With a cut off blade in an angle grinder. He had a capped lug nut that resisted all of his burly country boy efforts and resorted to CUTTING THE WHEEL open to access the damaged lug nut.

An afternoon in sweltering humid heat, hours lost, plus now having to BUY a new alloy wheel. Those one piece solid steel lug nuts would have been priceless.

And no apparently the dealership didn't offer a been there done that use this loaner tool.

Gary
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Old 06-06-2023, 06:50 AM   #17
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Quote:
Originally Posted by Bluetick View Post
McGard lug nuts in a 1/2-20 size seem to only come in 4-packs. What do most people do if they have dual axle, 6 lug wheels? Buy 6 packs?
I believe the 4 pack is because the majority of their customers have 5 lug wheels and and 4 nuts & 1 lock nut is the usual purchase.

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Old 06-06-2023, 08:07 AM   #18
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Quote:
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McGard lug nuts in a 1/2-20 size seem to only come in 4-packs. What do most people do if they have dual axle, 6 lug wheels? Buy 6 packs?
My guess is they sell them in 4 packs since nearly all vehicles have 4 wheels. Makes no difference then if you have 4 lugs per wheel, five, six, etc. as you can just buy as many packs as you need.

I bought six 4-packs to replace all the lug nuts on all four wheels.
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Old 06-06-2023, 10:34 AM   #19
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If you didn’t understand what I posted up in #9…go re-read it. Whatever lugnut you buy MUST not only have the correct thread pattern (likely 1/2-20) … but also MUST have the proper shape to snugly fit the socket in your WHEEL….

Most aluminum wheels require “bulge” nuts…not conical types (mostly found with steel wheels)….but there are other styles as well. Be Certain to get the correct lugnuts. If you don’t know how to tell what kind/type your have…go buy lugnuts from your favorite tire-installer. They will show you.

Otherwise, once you understand the issue… buying them online is fine.
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