Isuzu npr 4wd

[rruff]

And honestly I will not enter into that type of ditch you chose to enter into. My rig is not designed for jeep only type trails. There is millions of trails with less than that erosion in the western USA and Canada.

IME in the western US, it's not unusual at all to have the whole rig supported on 2 opposite corners. Going though a ditch at an angle for instance... or just rocks and bumps and ruts on any trail. You need to be able to accommodate that or you'll be pretty restricted.

If you have a berth over the cab I think it's a good idea to use a 3 point arrangement with the rear pivoting, so the front of the camper follows the cab pretty well. I have 2" of clearance and I think 1" would have been plenty.

 

[gator70]

IME in the western US, it's not unusual at all to have the whole rig supported on 2 opposite corners. Going though a ditch at an angle for instance... or just rocks and bumps and ruts on any trail. You need to be able to accommodate that or you'll be pretty restricted.

If you have a berth over the cab I think it's a good idea to use a 3 point arrangement with the rear pivoting, so the front of the camper follows the cab pretty well. I have 2" of clearance and I think 1" would have been plenty.

With a spring mounted subframe, one end is fixed. Mine is in the front close to the cab.

A 30 inch ditch is fine with me. More than that, I'll turn around and find another route.

 

[SkiFreak]

With a spring mounted subframe, one end is fixed.

Maybe on your build that is the case, but that is definitely not the norm. Most spring mounted subframes have no fixed points.

 

[SkiFreak]

You will never see me do that

All I can say to that statement is that "s#it happens".
Not preparing for this in an expedition camper build could prove to be problematic.

I am a firm believer that 4 wheel drive is something that can get you out of trouble, not put you into it, but designing and building for a worst case scenario is often prudent.

 

[Ultimark]

My wheelbase is 3395mm while yours is 4470.4mm which is 1075mm longer, which by my calculation adds approximately the extra depth of the Crew Cab version you have.

That longer wheelbase is not available directly from Isuzu in their N series 4x4 unit. This does appear to be a bonus for you for placement of your camper behind the Crew Cab cabin.

The downside though is turning circle, but they are the trade-offs we all make when doing something like this.

Ramp over will also be a bit of an issue, especially if you have a low transfer case arrangement like what I've seen on some converted USA based NPR units. Pictures only.

We'll see.

Mick.

 

[gator70]

My wheelbase is 3395mm while yours is 4470.4mm which is 1075mm longer, which by my calculation adds approximately the extra depth of the Crew Cab version you have.

That longer wheelbase is not available directly from Isuzu in their N series 4x4 unit. This does appear to be a bonus for you for placement of your camper behind the Crew Cab cabin.

The downside though is turning circle, but they are the trade-offs we all make when doing something like this.

Ramp over will also be a bit of an issue, especially if you have a low transfer case arrangement like what I've seen on some converted USA based NPR units. Pictures only.

We'll see.

Mick.

I welcome the comments you made. We in the USA are not as experienced with Isuzu 4x4's

I knew about the wheelbase when I started. Still I have a turning radius the same as a MB Sprinter 170.

Considering the amenities I have is still very acceptable.

On ground clearance, the front dana 60 differential (from the f550) sitting on 37" tires has a better clearance than the OEM front differential on the Isuzu NPS 4wd.

Many USA builders use a "divorce transfer case", which sits further back in the frame.

My rig has the standard transmission / transfer case from the GM 3500 4wd, a tighter package.

 

[gator70]

All I can say to that statement is that "s#it happens".
Not preparing for this in an expedition camper build could prove to be problematic.

I am a firm believer that 4 wheel drive is something that can get you out of trouble, not put you into it, but designing and building for a worst case scenario is often prudent.

Every 4x4 vehicle has its limits

Example: A Earthroamer

To design for the limits the owner sets "just right" is the correct method.

Overlanding jeep trails is not made for bigger rigs.

The rig I build will do better in the backcountry than a Earthroamer and not as good as a jeep

Last time I read, Jeeps don't seat 7, and sleep 4, like my rig.

 

[gator70]

@Ultimark

Can you help me get Isuzu NPS front door "lower steps", left and right? As I can't get them in the USA.

 

[rruff]

Overlanding jeep trails is not made for bigger rigs.

In the desert SW the paths to get anywhere are SxS, ATV, UTV, etc trails. Not even jeeps! Mostly not, anyway...

That's how I get to where I want to go in my behemoth. It's slow going, rough. The "bumps" (about 6" high, 3' peak to peak?) they naturally make in the surface are quite annoying... worse on a bicycle than the truck actually!

Other options are very restrictive... few routes, have to camp near the road, traffic, people, etc.

 

[lanceatm]

We in the USA are not as experienced with Isuzu 4x4's

I would appreciate it if you mention you are speaking for yourself on this particular subject.
That very nice red truck you have pictured (thank you) I know a little about - my company in the United States engineered, built and tested (and continue to do so) it and many others to meet ALL - FMVSS and HSM standards in the United States. We have sold, built, driven, trained others to operate them all over the country, just speaking for myself of course.
One more thing it is loaded to maximum GVW of 14000 pounds in that image you posted, context is critical. - here is a better pic for you -

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View attachment 886236

 

[gator70]

Nice pic

 

[SkiFreak]

Can you help me get Isuzu NPS front door "lower steps", left and right? As I can't get them in the USA.

STEPS ISUZU TRUCK & BUS PARTS

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[gator70]

STEPS ISUZU TRUCK & BUS PARTS

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Seems to be up to the year 2008.

Mine is the newer model series.

I contacted support and they replied, they do not have those for the newer series.

 

[SkiFreak]

Even if they are not available in the US, an authorized Isuzu dealer should be able to give you the part numbers for the steps you are looking for.
If you can get the part numbers it will likely be easier to find them online, if they are available as spare parts.

 

[gator70]

Even if they are not available in the US, an authorized Isuzu dealer should be able to give you the part numbers for the steps you are looking for.
If you can get the part numbers it will likely be easier to find them online, if they are available as spare parts.

Yes, tried that already. No luck.

Last option. Fabricate my own.

In the pic below is the cab door open, with the upper OEM step removed. We see attachment points to the cab sheet metal.

Three custom hangers could be fabricated from the back of those points.

(the frame rails are too far away)