Report back on suspension upgrade for Toyota V8 vdj79 ute.

I would like to report some feedback on what I would consider has been a successful suspension upgrade for my Landcruiser ute.

I came to a decision to upgrade after reading a report by Bungarra – ‘GVM adds up Does yours?’ which put forward the real concern with people driving around essentially overloaded. (posts 81681 & 81743).

I carry a travelander camper and fully loaded with water, fuel, food, and all the extras I would be pushing right at the GMV for the ute.

The second consideration was after seeing the report from Rumpig on ‘Another dual cab bent chassis’ in post 81850. The main issue I could see from this was I was running air bag suspension pumped to the max to carry the load of the travelander and did not want to end up with a cracked or bent chassis when out remote.

After looking around and asking a lot of questions and getting some great feedback I chose to go with West Coast Suspensions (also formally known as Jenkins Spring works established 1924). (no affiliations just happy customer)

http://www.jenkins.com.au/about.htm

I chose to go with the front coil upgrade of 18mm dia coils and 8+2 rear leaf upgrade. This will give me a heavy duty about 400kg extra in capacity. It also will result in a 50mm lift all round. I was not fussed about the lift as I have not felt a need for extra ground clearance. This also included new shockies, steering dampener, greasable swing shackles, urethane bushes all fully installed.

I seriously looked at their 3900kg with a GMV upgrade but thought this might be just a bit too hard.

Even with this suspension upgrade my concern was it might be just too hard when unloaded and was still concerned when loaded with the camper it might not be enough.

Well after the upgrade my concerns where put to rest. Driving around with no load I found it softer and even ‘springier’ than the original Toyota suspension.
After a weekend away with the camper for the first time after the suspension upgrade I was amazed to see the camper load going on as I cranked down the legs on the camper and see the suspension barely dropped 20mm. Full water and full fuel but only a weekend worth of food and gear.

They installers (Rockingham suspension) said I would not need my air bags anymore and I think they where right. I have kept them in place as it allows me to add a bit more to the suspension and just tighten things up a bit if I felt I needed it. It also allows for the load to be carried at 3 points along the chassis rail now instead of most being supported in the middle at the hump over the axle.
Well now very happy.

Time will tell on the long term serviceability but so far it has been great.

David







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Reply By: Diesel 'n Dust - Monday, Nov 29, 2010 at 00:38

Monday, Nov 29, 2010 at 00:38
Serendipity,

I like your report mate.

'Driving around with no load I found it softer and even ‘springier’ than the original Toyota suspension.' I'm surprised by such a result in ride quality. But indeed good.
(I ain't no suspension expert!!)

I've seen utes at work with upgraded GVM suspension ( I think plus 600kg??) due to them carrying a large tank of diesel and tools. But the bugger wouldn't let me have a test drive. I think they had Dobinsons suspension installed. The fitter sais that it's highest legal upgraded available for the Cruisers.

They look sick!

Again an informative report


Matthew

Matthew Clements
I just love the Pilbara!
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Reply By: Mr Pointyhead - Monday, Nov 29, 2010 at 11:41

Monday, Nov 29, 2010 at 11:41
As a matter of interest, Darren from Autocraft at geelong is currently converting a VDJ79 ute from leaf to coil rear suspension. He is using a coil rear end from a wrecked 100 series for doner parts.

He is doing it to get more flex and comfort out of the vdj79

Rob
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Follow Up By: Member - Serendipity(WA) - Monday, Nov 29, 2010 at 22:02

Monday, Nov 29, 2010 at 22:02
I often wonder why people want to soften up the 70 series. Why not just buy the 100 or 200 series and chop to a ute if they need some tray space.

I suppose people can do what they like, just that toyota produced a tough workplace vehicle and the compromise is some roughness.

Cheers

David

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Reply By: Robin Miller - Monday, Nov 29, 2010 at 11:46

Monday, Nov 29, 2010 at 11:46
When I looked at them , the narrow track width was more of an issue David.

From your post I don't think you changed this.

In your research , do you no if anyone offered solutions in this area.
Robin Miller

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Follow Up By: Member - Alex K (NSW) - Monday, Nov 29, 2010 at 20:01

Monday, Nov 29, 2010 at 20:01
Snake 50mm Specers or offset rims but that creates spare tyre/rim considerations as you'd only want to offset the rear.
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Follow Up By: Robin Miller - Monday, Nov 29, 2010 at 20:31

Monday, Nov 29, 2010 at 20:31
Hi Alex

I'd worked on snake spacers to align the rear up , and then 25mm offset rims all round seemed about the max but I figured it would not be enough.

But its all to much for a new car and had been hoping for a better engineered solution.

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Follow Up By: Flynnie - Monday, Nov 29, 2010 at 21:53

Monday, Nov 29, 2010 at 21:53
Robin

Must admit to travelling behind cruisers with slide ons and wondering how far they could be tilted before falling over. My guess is they would be less stable than a troopie and a lot less stable than a trayback with load packed low. The ones with rebated slide ons (narrower at base than at top) looked to have a lot of mass out beyond the wheels.

Any research on this?

A 100 mm wider rear axle would be handy. I wonder if Toyota will ever do it? And decent rear brakes while at it.

Flynnie
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Follow Up By: Member - Serendipity(WA) - Monday, Nov 29, 2010 at 21:59

Monday, Nov 29, 2010 at 21:59
Hi Robin

I have heard people talk of the front to rear offset and some say it is a problem. I have had this ute for 2 years now from new and have not experienced any issues with the offset tracking.

I have driven on very soft beaches, fully loaded and all that happens is the rear centres on the front tyre marks. Not that I really even noticed that.

The thing I have noticed is with the wider front end I have less body roll and can dive into corners a lot better without thinking the ute will roll. Sort of like how go-karts are setup with the wider front end. Or in a very simplified analogy if you where to go down on all fours your arms would naturally want to be wider than your feet for stability.

I believe in the past one of the big issues with 4x4s is rolling over when cornering too fast. I would put forward that the wider front end goes along way to alleviate this isssue.

I am happy with the way it is.

Cheers

David

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Follow Up By: Robin Miller - Tuesday, Nov 30, 2010 at 08:16

Tuesday, Nov 30, 2010 at 08:16
Hi Guys

Someone posted a few weeks ago that toyota had increased the rear track , prompting my question , but I have seen no verification of this.


Not aware of any direct research , but the muarc link I have posted elsewhere showed the dramatic effect of putting a prison pod on the back of police ute , this is probably as close as we will get.

Overseas in similar types of cases they have used dual wheels , and I note the odd dual axle conversion in Oz but this is a bit extreme, I guess I was hoping something simpler like a cut and extension of the axle tubes and longer axle.

I expect this will come as we have 3 series of cars on same basic plan now , Troppie / 76 / Utes.

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Follow Up By: Member - Alex K (NSW) - Tuesday, Nov 30, 2010 at 12:08

Tuesday, Nov 30, 2010 at 12:08
Hi Robin,
Enough for what? 50mm spacers on each side of the rear lines the rear to front. Any additional offset rims will just make everything wider. Not sure about the front rubbing but my rear would be wider then the tray.
Alex
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Follow Up By: Robin Miller - Tuesday, Nov 30, 2010 at 13:47

Tuesday, Nov 30, 2010 at 13:47
Hi Alex

I required any car I could accept to be able to pass a 45 degree tip over test.
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Reply By: Dennis Ellery - Monday, Nov 29, 2010 at 20:07

Monday, Nov 29, 2010 at 20:07
They are a rock solid ute - the iron ore miners use them extensively in the Pilbarra. You must have quite a load on it. What weight are you carrying?
Regards Dennis
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Reply By: Member - bungarra (WA) - Wednesday, Dec 01, 2010 at 20:39

Wednesday, Dec 01, 2010 at 20:39
Hi David

well my 79 series is booked in this coming Friday for the full GVM upgrade.........will be an interesting ride home at around 3700kg.......hopefully as soft as yours

cheers
Life is a journey, it is not how we fall down, it is how we get up.
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