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totally agree - though last time I raised that here, a few years ago, it sort of got lost as it didn't fit the wisdom at the time. It was very obvious to me as I'd observed an Isuzu conversion with fixed at rear / pivot at front where owner complained of excessive body roll. In the same vein...

just different mental models of "dynamic".

don't take my meccano model too literally. moment of inertia is square of the height ..... also to be considered is roll steer - an outcome of a rigid front axle impacted by the box design. if it helps, try picturing - if the front and rear axles are twisted in opposite directions and the...

pic below is about halfway between reality and virtual, a bit useful to see what moves relative to what else. The FG has a step and a narrow chassis (for dual wheels which we don't like anyway) just to make things harder, another useful exercise is to pick up a shoe box (with lid) and twist it...

perhaps just some general principles ... difficult to make a silk purse out of a sow's ear, once a truck always a truck my truck is at the lighter end of the spectrum so fewer ATW leaves, others are heavier small diameter rims with large diameter tyres can be more comfortable and flexible than...

here's just one version of all the forces and movements. I started with a meccano model. the amount of twist absorbed between road and body depends on load, suspension stiffness, chassis stiffness, sub-frame stiffness (including body). For example, with the same suspension and same articulation...

apologies for duplicate

PS. I knew there was something I forgot to mention. Black smoke from exhaust. The higher we went the more black smoke. Its possible to retune a bit to match the locals, but I decided not to as we would be back to sea level a few thousand km later.

FG649 2004, I experienced engine warning light on intermittently above 4,000m (13,000 ft), and almost permanently above 5,000m (16,400 ft). The diagnostics (read with blink codes) said low turbo boost pressure. Consistent with low atmospheric pressure at higher altitude. I'd have to look at my...

I replaced the condenser. The old one looked like previous owner had cleaned the vehicle with high pressure water hose and squashed all the fiddly little bits so not much air flow through it.

I replaced the condenser and placed it between the chassis rails at a slight angle to horizontal with a bit of Al window security grill below it. A bit of metal work for condenser and fan mount. Not that easy, my mobile aircon man didn't have fittings. I don't know if the compressor or the...

yup, 2m is about right, a near miss. Could have been end of trip. It was one of those slow motion moments where "do nothing and just let it glide to a halt" seemed to be a reasonable tactic. When it did stop getting out quickly before something bad happens seemed to be right. Had to stabilise it...

mine doesn't click any more, since some wiring melted ..... when I get to fixing the wiring IIRC the oil level sensor is on its own diagram in the manual.

I couldn't find a car park so tried for real. Vehicle is resting on wheels closest to camera and diffs. Rice paddy on the far side. Total weight is around 4.5 tonne. If I'd had a choice I would have stopped well before it got to this angle. I lost my concentration for just a moment. Getting out...

one set of figures to test the gauge (place known resistance across the gauge and check the needle position), the other set for the senders (move the float and measure the resistance). Two different physical senders with the same resistance values. Gauges where empty and full mean almost empty...

just day dreaming really ..... if we have traction then the vehicle will move as the wheel rotates. A wheel winch/capstan which is smaller diameter than the wheel implies that the wheel must spin. So why don't we have a "rope" that will wrap itself around the wheel. A bit like a long hammock...

are they labels on the rear diff housing? It looks a bit cleaner than the rest, has it been replaced?

I fitted two expensive brass lockable caps but don't know what brand. I guess they act as some sort of deterrent but I'm too lazy to lock them and the drain plug is readily accessible on the bottom of the tank.

for reference ... about 5 years ago (is it really that long ago, June 28th 2010) first trip, stuck with one hub that didn't engage. Worked out test later. Engage one hub, can turn drive shaft by hand. Engage two hubs can't turn drive shaft, hubs working ok, can turn drive shaft one or both hubs...

yup, there's always limits ..... one of my scarier moments was when front wheels went for a slide, very difficult mentally to use a bit of accelerator, fortunately the tree moved out of the way.