My Fuso4x4

[SkiFreak]

Yes, 6061-T6 is typically used for wheel spacers, but be mindful that most wheel spacers are used on cars, not trucks. The loads and stresses on them would likely be higher when fitted to a truck.
Not that I would go down this path myself, but if I did, I would probably use 7075-T6, as it offers superior properties, like higher strength and fatigue resistance. However, 7075-T6 is typically more expensive.

My alloy super singles are hub-centric, which is a bit of a pain. I definitely would have preferred that they were stud-centric, but I did not get a choice in their design.
If you are using steel rims, why wouldn't you go with a stud-centric design?

 

[Ferjablito]

Thanks, I'll take note and change the quality of the aluminum. I imagine that, like yours, my rims are centered on the axle. The first option was to change the rims, but due to the difference between the axles, it is not feasible to make a multipurpose rim for both axles, so I decided on spacers.

 

[SkiFreak]

I may be missing something, but why don't you simply buy some super single rims from Australia and have them shipped to you?
Numerous other people have done exactly that.

 

[Ferjablito]

Quizás me esté perdiendo algo, pero ¿por qué no compras unas llantas super single de Australia y te las envían?
Numerosas otras personas han hecho exactamente eso.

I may be missing something, but why don't you simply buy some super single rims from Australia and have them shipped to you?
Numerous other people have done exactly that.

Maybe I didn't explain myself well when using the translator. I already have super singles manufactured here in Spain. This file is precisely from the automotive rim manufacturer https://tejwheels.com/. The problem isn't the rim, which doesn't allow a +50 offset (it doesn't allow it to be interchanged), but it does allow it if you manufacture two different front and rear models.
Ordering them from Australia was ruled out due to price. These cost 250 euros each.
So, if I want to modify the offset to +50, or in other words, extend each tire 4 cm outwards, the least bad and economical option is rim spacers.

 

[gator70]

Honestly super singles / the price and available options was the "very first decision point" in what Expedition vehicle platform I chose to build upon.

The cabover trucks had many more options than the USA platforms. As some crazy suppliers where asking $1200 for a wheel for Fords, Chev, Dodge.

 

[SkiFreak]

Maybe I didn't explain myself well when using the translator.

No, it's not really that, more that your assessment of what a super single wheel is obviously differs from mine.
To me, a super single is a rim that allows you to have an equal track front and rear and is designed to support the maximum GVM of the truck.
The rim can also be mounted from either side, negating the need for different rims front and rear. Mine also have two valve stems, making tire inflation/deflation simple.
My rims are DOT rated at 3150kg, which gives a high safety factor, even in extreme off-road situations.

If you want to go down the spacer route, that is your call, but in my opinion there are better, safer options.

 

[Ferjablito]

The wheels are manufactured under the same concept as, for example, brands you have in Australia (they can be reversed and the tread matches). To give an example, one of your well-known brands, AAV4x4, is a national manufacturer with extensive European distribution. However, with this manufacturing concept, the offset modification is obviously limited so that the tread matches. Currently, the ones I have have an offset of +90. With this concept, it is impossible to lower it to +50 and have the tread match. This is why the manufacturer offered me the solution of 3 front and three rear, but this idea does not quite fit me, and that is why I have considered wheel spacers.
What better and safer solution do you know?

 

[SkiFreak]

What better and safer solution do you know?

The main reason people normally go with super singles on these trucks is to improve drivability in offroad situations, as dual rear wheels are not ideal for that scenario.
Super singles do not really change your track width, they just give you an equal track width at the front and rear.

If your main focus is on having a wider track, then spacers are probably your cheapest option, but as I have said, these will also add additional stresses on a range of components.
A safer, but obviously a much more expensive option, would be to change out your front and rear axles for something wider.

Out of interest... why do you want/need a wider track?

 

[Ultimark]

Will you possibly have clearance with the front axle being 80mm wider overall? By that I mean that when your front axle swings in an arc, could it start touching the underside of the cabin? I don't envisage the rear axle having any issues, just possibly the front axle due to the cabin being there.

One of the modifications of our Isuzu NPS is an approximate 50mm lift, which raises the cabin further away from the front axle allowing wide larger wheel/tyre combinations to swing up without touching the cabin underside and as a result allows great articulation.

Mick.

 

[Ferjablito]

Will you possibly have clearance with the front axle being 80mm wider overall? By that I mean that when your front axle swings in an arc, could it start touching the underside of the cabin? I don't envisage the rear axle having any issues, just possibly the front axle due to the cabin being there.

One of the modifications of our Isuzu NPS is an approximate 50mm lift, which raises the cabin further away from the front axle allowing wide larger wheel/tyre combinations to swing up without touching the cabin underside and as a result allows great articulation.

Mick.

This video is from a Spanish camper, in which he uses similar rims. If you look without lifting the front axle, you will see that where it rubs now is the rear mudguard rubber and it clears the rest. From the height to the sheet metal in the front there is more than enough height. However, by modifying the offset by 40mm, it will obviously require modifications to the step and mudguard area.

https://fb.watch/BlxSVIG2ev/

 

[Ferjablito]

The main reason people normally go with super singles on these trucks is to improve drivability in offroad situations, as dual rear wheels are not ideal for that scenario.
Super singles do not really change your track width, they just give you an equal track width at the front and rear.

If your main focus is on having a wider track, then spacers are probably your cheapest option, but as I have said, these will also add additional stresses on a range of components.
A safer, but obviously a much more expensive option, would be to change out your front and rear axles for something wider.

Out of interest... why do you want/need a wider track?

Exactly, a huge advantage is switching to 37-inch wheels with radar-equipped tires, for example. Now, we also have to be honest, since the improvement in comfort tires and 4x4 handling also comes at the expense of stability. It's a vehicle designed for dual-wheel drive and low-height loads. And of course, when we build a house and go up to 3337, as is my case, and with almost 6,500 kg,
the stability index worsens drastically. As I mentioned previously, the Fuso starts with a narrow axle width with a rear twin, which compensates when switching to single-wheel drive. With so much weight, you need to invest in suspension and stability. I don't know if I've answered your questions.

Obviously, there's an engineer, and everything is discussed before driving, and it can be approved, as I seem to remember telling you. The downside is that to improve track width in this more economical way, several steering components must be upgraded, which is why I had to look for heavy-duty replacement parts, which apparently is quite complicated. The issue of replacing axles, unless there's a lot of money or it's subsidized, is unfeasible. These ideas had already been mentioned to me by Dakar trainers eager to make money.

 

[Ferjablito]

By the way, there are differential air vent plugs in various sizes. The one that comes as standard on the 2023 Fuso is too long and touches the base of the air suspension.