V8 70 series front axle overload.

Submitted: Wednesday, Dec 19, 2007 at 20:27
ThreadID: 52693 Views:4889 Replies:6 FollowUps:7
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Heard from a Parks Vic Ranger that they are having issues complying with the max load on the front axles of the new Cruisers. Despite alloy bull bars and traybacks, when they fit the 9000lb low mount winch, fill up the fuel tanks and put 2 large adults onboard, the Cruiser goes overweight on the front end. To fix the issue they tried mounting the winch under the back of the tray and pushing the slipon (fire fighting unit) back 800mm to counter balance the heavy front end.
It would appear then that Toyota's own genuine steel bull bar and winch may not even meet ADR's when fitted?
Can anyone confirm what the difference is between the front axles maximum rated capacity and the weight over the front axle from new?
Cheers Craig............
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Reply By: Member - Doug T (FNQ) - Wednesday, Dec 19, 2007 at 20:43

Wednesday, Dec 19, 2007 at 20:43
Crackles
You been listening to Furphy's

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Follow Up By: Member - Davoe (Yalgoo) - Wednesday, Dec 19, 2007 at 20:53

Wednesday, Dec 19, 2007 at 20:53
nope that would be correct even the old 70 was easy to overload. i worked for the govmint and to keep there cruisers legal there was a lock off over the front tanks and they ran using the rear tank and the aux was in the tray they had the GVM upgrade from new etc
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Follow Up By: Crackles - Wednesday, Dec 19, 2007 at 21:12

Wednesday, Dec 19, 2007 at 21:12
I suppose not many actually go to the trouble (Or care for that matter) like the Government or big companies to weigh front & rear axles, that's why I'm asking for the real weight & how much is left to play with.
If as you say Dave the old 70 was easy to overload then the heavier V8 diesel must surely have less axle capacity left.
Do you remember what the maximum legal upgrade in weight was by any chance? Our work is due to get a V8 tray later next year and will need to fit a winch along with a well stocked trayback.
Cheers Craig..............
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Reply By: Member - bungarra (WA) - Wednesday, Dec 19, 2007 at 22:10

Wednesday, Dec 19, 2007 at 22:10
Have the new cc on order delivey late Feb...steel tray + toyota steel bull bar + toyota 9000lb winch.......

decided to have it all dealer fitted pre delivery for potential warranty issues and convienience (time) as we heading off 4 weeks later.......in the past have always fitted bb and winch from other sources post delivery

glad i did...as this is an interesting post.......now I am tempted to weigh it all post delivery
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Reply By: Richard Kovac - Wednesday, Dec 19, 2007 at 22:27

Wednesday, Dec 19, 2007 at 22:27
Craig

where do you get the split weights for the 70 series from? would like to see them

Cheers

Richard
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Follow Up By: Member - John (Vic) - Wednesday, Dec 19, 2007 at 23:06

Wednesday, Dec 19, 2007 at 23:06
Richard its on the makers spec plate below the drivers side door catch, on your left as you get in the car.

78 Series TD6 is 1460kg front axle and 2300kg rear axle.

I weighed mine with a full desert load including in Alice last year and I was under the 1460kg (1420kg if my memory serves me) on the front axle with a steel ARB Bull Bar and side rails, Warn 9500 HS winch, duel battery under the bonnet and full fuel load.

I won't disclose the rear weight :-)) other than 2300kg is not as much as you think :-)

I would not think that the V8 was that much heavier than the TD6??
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Reply By: Member - BIGDOG G (WA) - Wednesday, Dec 19, 2007 at 22:30

Wednesday, Dec 19, 2007 at 22:30
Hi Guys, MMmm, my 70 should be here mid Jan. Factory fitted steel bar plus scrub bar plus steps and 9000 winch . Will have big load on the rear when its fitted out.

Interesting post.......guess we just wait and see.

Cheers.............BIGDOG
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Reply By: Rock Ape - Thursday, Dec 20, 2007 at 07:46

Thursday, Dec 20, 2007 at 07:46
Does anyone know if the V8 is heavier than the 6, I know the V8 6.5 chev deisel is only 15kg heavier than my old 2H 6 cyl.

I also wonder about the cruiser railway utes with the rail running gear on the front of them, that must weigh heaps. These must have a compliance plate but does anyone know if any mods are done to the front axle
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Follow Up By: blown4by - Sunday, Dec 23, 2007 at 10:27

Sunday, Dec 23, 2007 at 10:27
Yes they have a GVM upgrade which involves suspension mods and a brake test. They are also a conditionally licensed vehicle (in WA anyway) The ones used by FESA (Fire & Emergency Services) & Telstra do the same.
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Reply By: psproule - Friday, Dec 21, 2007 at 06:53

Friday, Dec 21, 2007 at 06:53
Legally you only have to comply with the total GVM. The manufacturers specified front and rear axle loads are recomendations (obviously for good reason) but you do not have to comply with them for normal motor vehicle registration.

Pat
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Follow Up By: blown4by - Sunday, Dec 23, 2007 at 10:28

Sunday, Dec 23, 2007 at 10:28
Wanna bet?
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Follow Up By: psproule - Tuesday, Dec 25, 2007 at 04:42

Tuesday, Dec 25, 2007 at 04:42
There was quite a lengthy thread about this over here -Site Link. Essentially if you mount a steel bullbar on an NP and put two adults in the front seats you are over the front axle weight. One of the forum members took MMAL to task over this and eventually received the following response. I would agree it would be better to check this directly with the authorities but it does appear that MMAL did go through the right channels. Interestingly the NS now has an upgraded front axle weight.

"Subject: Mltsublshl Pajero -VIN ##########
Further to your additional correspondence dated 8 October 2007 and subsequent telephone conversations, we write to advise the following. Please accept our sincere apology for the delay in response.
Please be advised that from the vehicle mass data recorded by yourself and our Regional Representative it has been established that under some conditions your vehicle front axle mass may exceed the recommended maximum as stated in the vehicles Operator's Manual.
With regard to your concern of the front axle mass exceeding legal Road Traffic requirements, further checking confirms that passenger vehicles are only required to meet total vehicle mass (GVM), individual axle mass is not required. Should your vehicle require inspection at any time by the appropriate Road Traffic Authority, Mitsubishi Motors Australia Ltd ("MMAL") have received advice that only the total vehicle mass (GVM) is checked.
MMAL can further clarify the front axle mass limit, as stated in the vehicle's Operator's Manual, is not a legal requirement but a manufacturers recommendation. This limit has been established by our engineers to reduce the risk of excessive overloading of the front axles, which may result in reducing the operating life of the front wheel bearings.
MMAL understand that with both driver and front passenger seats occupied and the non-genuine ARB front protection bar fitted to your vehicle, the kerb mass of the vehicle does exceed the manufacturers stated front axle mass by approximately 50kgs. It is our opinion that this additional mass on the front axle would have minimal, if any, affect on the durability and longevity of the front wheel bearings.
Provided your vehicle specifications do not exceed the total vehicle mass (GVM) specifications, as stated in the vehicle's Operator's Manual, it will meet the legal requirements for the Road Traffic Requirements. We believe that this is the case with your vehicle.
Please be assured that should any repairs need to be carried out on your vehicle due to problems that may occur with the front axle load exceeding limits stated in the Operator's Manual, MMAL will consider any such warranty claims.
We trust that the above clarifies our position regarding this matter and please be assured of our best
intentions at all times.
Yours faithfully
MlTSUBlSHl MOTORS AUSTRALIA LTD
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Follow Up By: blown4by - Wednesday, Dec 26, 2007 at 14:52

Wednesday, Dec 26, 2007 at 14:52
There are a couple of points that need clairification in your response:
1. I thought we were discussing the V8 70 series L/C not the Bitsare missing Paj.
2. I assume as the letter (if genuine) is from NSW as the RTA is quoted. They may not check the weight on individual axles over there but I can assure you that in WA the Main Roads Heavy Haulage section not only check the weight on individual axles but they actually check the weight on each wheel in order to arrive at the axle weights then the total gross mass i.e. GVM. The licensing authority in WA also have the right and when necessary do request individual axle weights from a registered public weighbridge for any vehicle suspected of exceeding its maximum axle weights recommended by the vehicle manufacturer.
3. The weights quoted by Toyota are the maximum recommended for each axle from an engineering design viewpoint. To exceed that you are taking the responsibility for any consequences upon yourself and absolve the manaufacturer from any further liability regards warranty and more importantly legally. You void your comprehensive and third party liability insurance cover and place yourself liable for any civil litigation that may result from an accident that may even remotely be able to be demonsrated that the axle overloading from that recommended by the manufacturere has been exceeded.
4. Based on your analogy if the GVM is 3300kg then it is OK theoretically to have 3000kg on the front axle and 300kg on the rear. I don't think so!
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