The House Doctor

Next Amarok to be based on Ford Ranger

Offroad Vehicle Specific Discussions
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Apocalypse
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#16

Post by Apocalypse »

the much maligned Chev were actually quite the pioneers of Suspension design back in the sixties. The '63 Vette was independent all round with coils and anti roll bars and discs on the later models. - The Mustang is still running a live axle with drums on the lesser models. As Thys says, they went to rear coils in the pick ups early on, although I don't think IFS for any kind of cargo vehicle is really the right thing.... I guess the reality is though that modern light bakkies aren't really cargo vehciles. ...
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XJ Junkie
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#17

Post by XJ Junkie »

Mad Manny wrote:So... within 10 years or so of fitting Coils bakkies disappear from the scene.
Interesting...
You’re going to have to get used to it. I bet you that next Hilux will follow.
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#18

Post by ThysleRoux »

Mad Manny wrote:
Tue Sep 04, 2018 1:19 pm
So... within 10 years or so of fitting Coils bakkies disappear from the BANANA REPUBLIC that we call SA scene.
Interesting...
Phixed !!!! :shock:
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#19

Post by Mad Manny »

ThysleRoux wrote:
Tue Sep 04, 2018 2:14 pm
Phixed !!!! :shock:
Do you still get a Defender bakkie is non Banana Republic countries?
"No one ever got stuck - in mid air!"

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#20

Post by Quack »

Mad Manny wrote:
ThysleRoux wrote:
Tue Sep 04, 2018 2:14 pm
Phixed !!!! :shock:
Do you still get a Defender bakkie is non Banana Republic countries?
No


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#21

Post by Quack »

http://www.carmag.co.za/news/vw-atlas-t ... rd-report/

I to ye ze Germans are speaking wiff ze Americans[emoji12]
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#22

Post by ThysleRoux »

Mad Manny wrote:
Tue Sep 04, 2018 5:10 pm
ThysleRoux wrote:
Tue Sep 04, 2018 2:14 pm
Phixed !!!! :shock:
Do you still get a Defender bakkie is non Banana Republic countries?
No, but in NON BANANA Republics, the Chevy trucks still run on coils ....................... 50 + years on :roll:
I refuse to be POLITICALLY CORRECT to impress others - Deal with it
FLEX is UNDERRATED :twisted:

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#23

Post by XJ Junkie »

Quack wrote:http://www.carmag.co.za/news/vw-atlas-t ... rd-report/

I to ye ze Germans are speaking wiff ze Americans[emoji12]
First time I’d seen this. So VW considered making that Tanoak a unibody bakkie. No wonder they need Ford.
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Apocalypse
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#24

Post by Apocalypse »

Mad Manny wrote:
Tue Sep 04, 2018 5:10 pm
ThysleRoux wrote:
Tue Sep 04, 2018 2:14 pm
Phixed !!!! :shock:
Do you still get a Defender bakkie is non Banana Republic countries?
precisely.

after 35 years or so of coils and discs all round working properly on a real work horse, the model was discontinued.


Toyota just released their latest Leaf sprung and drum braked donkey cart and they got it even more wrong than the previous one. Ford, VW etc haven't done much better with their small pick ups....

I have to question why they realise that Coils are the way to go on the SUV version, but not on the pick up version....
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#25

Post by Mad Manny »

Why do big trucks, 4 - 12 ton, still use leaf springs if coils are superior?
Because, for workhorses, leafs are better.

But perhaps its time for manufacturers to split their range between leisure pick ups with discs & coils & workhorse bakkies with drums & leaf springs - which is better for load carrying...
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#26

Post by XJ Junkie »

No dispute that leafs & drums are better for loads. But that’s not what the vast majority of DCs are being used for.

This is where the McNissan/Renault is ahead of the game with mid-size bakkies
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Apocalypse
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#27

Post by Apocalypse »

XJ Junkie wrote:
Wed Sep 05, 2018 11:28 am
No dispute that leafs & drums are better for loads. But that’s not what the vast majority of DCs are being used for.

This is where the McNissan/Renault is ahead of the game with mid-size bakkies
The big thing that Manny missed is that not only do trucks have leaves and drums - they have beam axles / live axles.

In addition the axles are situated far forwards and far backwards to keep the load over the axles, not in the middle of the load bin like metrosexual bakkies.

this is so that when you put a load on them the wheels remain perpendicular to the road - unlike an unequal length wishbone set up which cambers up as it's loaded.

In addition, the axles being towards the front and rear mean that you put the load between the axles and load both axles - not (as is often the case with metrosexual bakkies) on top of the axle with the load biased towards the rear, which takes weight off the front axle.

The other bonus of live axles all round - the suspension geometry is compatible, even if you use coils up front and leaves at the rear.

you can match a trailing arm / coil live rear to unequal length wishbone front


but as soon as it's leaf spring live rear and unequal length wishbone fronts, you are fighting roll centres and reactive forces.

Basically - it's a reverse mullet. Party at the front and business at the back....
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#28

Post by Johannes »

Mad Manny wrote:
Wed Sep 05, 2018 11:01 am
Why do big trucks, 4 - 12 ton, still use leaf springs if coils are superior?
Because, for workhorses, leafs are better.

But perhaps its time for manufacturers to split their range between leisure pick ups with discs & coils & workhorse bakkies with drums & leaf springs - which is better for load carrying...
True. Yet your Defender pickups had a better loading capacity than most pickups ?? ;) Why ;)

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#29

Post by Reenen »

Apocalypse wrote:
XJ Junkie wrote:
Wed Sep 05, 2018 11:28 am
No dispute that leafs & drums are better for loads. But that’s not what the vast majority of DCs are being used for.

This is where the McNissan/Renault is ahead of the game with mid-size bakkies
The big thing that Manny missed is that not only do trucks have leaves and drums - they have beam axles / live axles.

In addition the axles are situated far forwards and far backwards to keep the load over the axles, not in the middle of the load bin like metrosexual bakkies.

this is so that when you put a load on them the wheels remain perpendicular to the road - unlike an unequal length wishbone set up which cambers up as it's loaded.

In addition, the axles being towards the front and rear mean that you put the load between the axles and load both axles - not (as is often the case with metrosexual bakkies) on top of the axle with the load biased towards the rear, which takes weight off the front axle.

The other bonus of live axles all round - the suspension geometry is compatible, even if you use coils up front and leaves at the rear.

you can match a trailing arm / coil live rear to unequal length wishbone front


but as soon as it's leaf spring live rear and unequal length wishbone fronts, you are fighting roll centres and reactive forces.

Basically - it's a reverse mullet. Party at the front and business at the back....
Maar, al die groot trokke gebruik nie meer leaf spring suspension nie...

Meer en meer beweeg weg na air suspension met so n groot massiewe rubber lug kussing...

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Apocalypse
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#30

Post by Apocalypse »

Reenen wrote:
Wed Sep 05, 2018 4:52 pm
Apocalypse wrote:
XJ Junkie wrote:
Wed Sep 05, 2018 11:28 am
No dispute that leafs & drums are better for loads. But that’s not what the vast majority of DCs are being used for.

This is where the McNissan/Renault is ahead of the game with mid-size bakkies
The big thing that Manny missed is that not only do trucks have leaves and drums - they have beam axles / live axles.

In addition the axles are situated far forwards and far backwards to keep the load over the axles, not in the middle of the load bin like metrosexual bakkies.

this is so that when you put a load on them the wheels remain perpendicular to the road - unlike an unequal length wishbone set up which cambers up as it's loaded.

In addition, the axles being towards the front and rear mean that you put the load between the axles and load both axles - not (as is often the case with metrosexual bakkies) on top of the axle with the load biased towards the rear, which takes weight off the front axle.

The other bonus of live axles all round - the suspension geometry is compatible, even if you use coils up front and leaves at the rear.

you can match a trailing arm / coil live rear to unequal length wishbone front


but as soon as it's leaf spring live rear and unequal length wishbone fronts, you are fighting roll centres and reactive forces.

Basically - it's a reverse mullet. Party at the front and business at the back....
Maar, al die groot trokke gebruik nie meer leaf spring suspension nie...

Meer en meer beweeg weg na air suspension met so n groot massiewe rubber lug kussing...

This is very true , and air suspension / air assisted leaves have been around for decades in trucks .

But always on beam axles in trucks . Leaf springs provide the axle location if equipped or it’s trailing arms which tends to mean more maintenance issues.

Airsprings have also featured in luxury sedans since the sixties - the Merc w100 limos spring to mind - and are incredibly reliable . Sadly air suspension has developed a bit of a bad name in recent years thanks to things like the disco 3 and 4 .
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