Super single or duals?

[GILBERT2020]

If you don't mind sharing, what's the freight going to cost and for what distance shipped?

I've looked at their items before but I imagine freight from Wisconsin to Washington state would cost a pretty penny...

Well from Feltz i bought two combat rims and two 395 85 r20's and it was $125 to ship it to Missouri. This is probably over 500 pounds so i think $125 is fair. They are about 800 miles from me. I would message them on ebay and ask them what shipping would be. Dustin Feltz is real nice and helpful.

I got 10 Michelin XZL's 12.00R20's from Champlin tire in Concordia, KS and i am going to pick these up this weekend.

 

[GILBERT2020]

Got all my tires in, install will be done in the next 48 hours, here's a before photo. I will post an after photo also.

Not going to lie here, really worried about the gap on the duals going from 11.00R20 to 12.00R20.. Worried that they are going to be touching.

on a side note this was about $4,000 total when all said and done.

 

[GILBERT2020]

Well they are installing my new tires today and have broke one stud so far. Anyone have any idea where I can get another one? How hard is it to replace? Can I run it unit I get an new stud? Thanks for any info

 

[simp5782]

Memphis equipment or Midwest military would be closest to you or ebay. It's not a commercial item.

You are not supposed to run with broken studs but its your call

You will need new inner and outer wheel seals to replace the stud pulling the inboard hub/drum

 

[GILBERT2020]

Memphis equipment or Midwest military would be closest to you or ebay. It's not a commercial item.

You are not supposed to run with broken studs but its your call

You will need new inner and outer wheel seals to replace the stud pulling the inboard hub/drum

Thank you Sir. about to order all this. I really owe you man.

 

[GILBERT2020]

Alright men- I have the rears on her! She looks good! The tire Tech did break one stud off, got the parts on order for this.

Wes was right, she fits like a glove. Thanks!

I will post once I get the steer tires on her. But I want these photos posted so that when someone else does this they know it will work and how it looks.

 

[Mullaney]

Alright men- I have the rears on her! She looks good! The tire Tech did break one stud off, got the parts on order for this.

Wes was right, she fits like a glove. Thanks!

I will post once I get the steer tires on her. But I want these photos posted so that when someone else does this they know it will work and how it looks.

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Looks like you can say "My Baby just got New Shoes!
Really nice...

 

[GILBERT2020]

Memphis equipment or Midwest military would be closest to you or ebay. It's not a commercial item.

You are not supposed to run with broken studs but its your call

You will need new inner and outer wheel seals to replace the stud pulling the inboard hub/drum

Wes- I wont need anything else will I? Just making sure before I tare into her is all. Don't want to drive it until I get this stud fixed.

 

[simp5782]

Wes- I wont need anything else will I? Just making sure before I tare into her is all. Don't want to drive it until I get this stud fixed.

No just inner and outer seals and a stud. Probably have new thimble there I'm sure

 

[TechnoWeenie]

Leave duals on the wrecker. With 1200R20s on the drives you can use a 395 85 R20 super single on the steer for more flotation

Exactly this!

1200r20s in dual configuration actually have higher load capacity and more ground contact area than a single 395.

This is what you need in the wrecker application.

1200r20 = 30,440 lb tire rating per axle, when dualled, and a footprint of 360² in
395/85R20 = 20,400 lb tire rating per axle, and a footprint of 310² in

 

[Mullaney]

Exactly this!

1200r20s in dual configuration actually have higher load capacity and more ground contact area than a single 395.

This is what you need in the wrecker application.

1200r20 = 30,440 lb tire rating per axle, when dualled, and a footprint of 360² in
395/85R20 = 20,400 lb tire rating per axle, and a footprint of 310² in


View attachment 843512

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I think the idea of super singles might have been lost on folks wanting "them big tires" on their trucks.
The real reason was to keep our active military on top of the sand.
Not to carry more weight.

Look at any concrete company here on our corner of the country. Not much sand over here. Lots of mud though
Super low pressure and spreading the weight on those big fat tires for mixer trucks...

Yes? Maybe?

 

[simp5782]

Dual tire CTIS is a nightmare
They can barely get single tires right.

The maxxpro plus MRAP runs dual 1200s with no CTIS.

 

[Mullaney]

Dual tire CTIS is a nightmare
They can barely get single tires right.

The maxxpro plus MRAP runs dual 1200s with no CTIS.

.
Makes a lot of sense.

Most folks at the Outer Banks carry little valve stem caps that auto deflate their tires to play in the sand. And the smarter ones have a small compressor to pump the tires back up when they leave the beach.

It isn't CTIS, but it is a manual version of it.

 

[US6x4]

Wes- I wont need anything else will I? Just making sure before I tare into her is all. Don't want to drive it until I get this stud fixed.

I changed out some studs a few months back and I also needed new safety wire to reinstall.

 

[Mullaney]

I changed out some studs a few months back and I also needed new safety wire to reinstall.
View attachment 843551

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Ahh... The safety wire and the real magic of the "right tool for the job" . The pliers...

 

[charlesmann]

.
Ahh... The safety wire and the real magic of the "right tool for the job" . The pliers...

View attachment 843650

Iv tried using them over the past 10 yrs and never could get the hang of them compared to doing it by hand. We werent allowed to use them in my units in the army, so, hand twisting it was. Plus the pliers crimped/nicked/scored the wire, leaving a weak spot in the wire and broke many a wire when pulling it through the hole and popping it tight.

Some can make their twists look text book perfect, but still nick the wire, leaving that weak spot.

 

[Mullaney]

Iv tried using them over the past 10 yrs and never could get the hang of them compared to doing it by hand. We werent allowed to use them in my units in the army, so, hand twisting it was. Plus the pliers crimped/nicked/scored the wire, leaving a weak spot in the wire and broke many a wire when pulling it through the hole and popping it tight.

Some can make their twists look text book perfect, but still nick the wire, leaving that weak spot.

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Funny. In the Navy we had to use the tool. Similar but different from the picture. Also had the check valve sealing tool and if you didn't use the tools you could be on a "crap detail" for a lot longer than you wanted to be. Our twisting tools were actually teflon coated too

Either way will work though. Especially if people know that nicks and kinks cause problems.

 

[TechnoWeenie]

.
I think the idea of super singles might have been lost on folks wanting "them big tires" on their trucks.
The real reason was to keep our active military on top of the sand.
Not to carry more weight.

Look at any concrete company here on our corner of the country. Not much sand over here. Lots of mud though
Super low pressure and spreading the weight on those big fat tires for mixer trucks...

Yes? Maybe?

That's why I mentioned contact area.

2x 1200s have larger patch area than 1x 395.

In sand, a single 1200r20 is 147² in contact, and a 395 is 220² in footprint. While dualled 1200R20s dropped to low pressure aren't suggested due to tire rub, it's definitely doable.

So, 147 *4 = 588² in footprint for an axle with G272s on it vs 220 *2 = 440² in footprint for an axle with 2 395s on it. It would be for emergency use, basically, and not something to be done constantly.

 

[TechnoWeenie]

To expand on that.... A truck weighing 30Klbs.... with 10 aired down G272s = 1,470 sq in of area. So, we take 30K and divide by the 1,470, and you get 17.2413793103 ... So, ~17 PSI

For contrast, the average human foot exerts ~6-16 PSI depending on standing, running, etc.

Contrast that to 6 395s - 220 * 6 = 1,320 sq in ... Same 30K lb truck would give you 22.727272727 .... or ~23 PSI.....

So, your 30k lb truck puts about 3x as much weight per square inch than a standing, flat footed, 150lb person, when running G272s. On 395s, you're about 4x as much weight as 150lb person. A roughly 25% increase in weight per square inch.

All things being equal, of course. You can't take dualled tires down in air pressure that much because they'll hit the other tire and rub.

But, people comparing dualled 1100s at 60PSI and 395s at 25 PSI are being disingenuous, at best.

 

[GILBERT2020]

Well gentlemen, she’s got all her new tires on! Everything fit perfectly!