Jayco Outback - Axle

Nutto · March 21, 2011, 10:03:32 AM

Quote from: Nutto on March 21, 2011, 09:07:38 AM
So, it seems that:
Outback with 1.5t axle has 7 leaf pack with axle underslung, which is what mine is.
Outback with 2.0t axle has 8 leaf pack with axle overslung, as per Teabags, BlackDiamond, which also results in 2-3 inches less height (which annoys Tbag no end ).
:

Hang on - I re read some of the thread - so TB, do you have 7 leafs on yours too? Does this count the first really short one at the base of the leaf pack? I did, and count 7 on mine.
If so, then you must have a different spring rate/curvature?

Nutto · March 21, 2011, 10:16:28 AM

Quote from: Black Diamond on March 20, 2011, 12:31:47 PM
Mine is spring is under the axle. Think i better give Jayco a ring on monday
This could get quiet messy as the annexe walls will then be too short if its fixed.
And as far as i know Jayco automatically upgrade the GVM when two water tanks are fitted, and having a look at the placard mine is not. Maybe they have placarded it wrong as Teabag you are saying you have the 2t upgrade and the axle is also over the spring.
Anyone know what the diiference is in the upgrade?
Teabag is there any chance you can count how many spring leafs you have, and possibly someone with the standard GVM?
In that case by the time the water tanks are filled i am stuffed!

Sorry for all the questions, i think you may have opened a can of worms.
BD

Teabag, BD's is sprung the same as yours too, so it seems a std thing to do with 2t upgrade.
BD, mines as per the std jayco pic you posted, with 7 leaves (including the really short one at the base of the leaf pack).

Nutto

Black Diamond · March 21, 2011, 03:32:20 PM

Jayco are stumped and dont know what they are on about, they are trying to tell me that i was an option to get an underlung axle, when i told them they were wrong and the Outbacks are supposed to have it standard, they said that it was a dealer error and i need to speak to them which i did, and they checked every outback in the yard and they were underslung.
The Jayco dealer doesnt make these campers, Jayco themselves do so how is it the dealers fualt

Jayco were trying to tell me that the broschure didnt say anything about the underslung axle as standard which it clearly does. They had a look at the broschure whilst on the phone then they realised i was right. Stumped again.

I think Nutto is probably right, but Jayco need to specify that the 2ton axle option is not underslung if thats the case.

Im waiting for a return phone call so i will let you know how i go.

Cheers

BD

Teabag · March 21, 2011, 03:53:29 PM

Quote from: Black Diamond on March 21, 2011, 03:32:20 PM
Jayco are stumped and dont know what they are on about, they are trying to tell me that i was an option to get an underlung axle, when i told them they were wrong and the Outbacks are supposed to have it standard, they said that it was a dealer error and i need to speak to them which i did, and they checked every outback in the yard and they were underslung.
The Jayco dealer doesnt make these campers, Jayco themselves do so how is it the dealers fualt
Jayco were trying to tell me that the broschure didnt say anything about the underslung axle as standard which it clearly does. They had a look at the broschure whilst on the phone then they realised i was right. Stumped again.

I think Nutto is probably right, but Jayco need to specify that the 2ton axle option is not underslung if thats the case.

Im waiting for a return phone call so i will let you know how i go.

Cheers

BD

I also rang Jayco today but the dealership and what Nutto is saying is correct and the way our suspension is with 2t is correct but there should be a 50mm spacer to lift it up to a regular outback. I now have to check mine to see if 50mm spacer is fitted............

Black Diamond · March 21, 2011, 04:36:03 PM

Quote from: Teabag on March 21, 2011, 03:53:29 PM
I also rang Jayco today but the dealership and what Nutto is saying is correct and the way our suspension is with 2t is correct but there should be a 50mm spacer to lift it up to a regular outback. I now have to check mine to see if 50mm spacer is fitted............

Top Stuff Teabag, I might check it tonight as well.

Cheers
BD

Moto Moto · March 21, 2011, 05:30:13 PM

Nice detective work guys. I was researching on the net only a few days ago trying to find answers on this very topic. Bushman pointed this out to me on the weekend while i was crawling through his Expanda.

I thought at the time that even though the axle on the O/B expanda is overslung it still looked as high as my underslung O/B Hawk. I'll be interested to find out if it is actually the same or just in my head.

Swogjb · March 21, 2011, 06:21:36 PM

Why do Jayco fit swing up jockey wheels on some outbacks and not on others.
Could this also be something to do with some having higher drawbars due to different spring set ups ?

Glenn

zed · March 21, 2011, 06:44:22 PM

Quote from: Swogjb on March 21, 2011, 06:21:36 PM
Why do Jayco fit swing up jockey wheels on some outbacks and not on others.
Could this also be something to do with some having higher drawbars due to different spring set ups ?

Glenn

I found having a removable jockey wheel good as some places I set up there wasn't enough lift in the thread alone to level the van
so being able to move the whole jockey wheel in the bracket was a big help

cdboi84 · March 21, 2011, 06:52:42 PM

It's all got to do with overlay axles and straight axles. What you'll find is most Pop Top Jayco Outback units have 1600/2000kg straight axles due to their weight, however Camper are lighter so therefore only have overlay 1450/1600kg axles.

Some Hawk, Eagle, Swan & Flamingo's will be upgraded to 2000kg straight axles from 1600kg depending on the options fitted due the axle loading and braked capacity. This is also the case when you opt for larger rims and tyres due to braking capacity. The Flamingo ST is standard with a 2000kg straight axle due to the weight of the unit.

When Jayco believe a unit will be over weight they'll fit a 50mm packer with a 2000kg axle so the unit will have a legal loading and braking capacity. The 50mm packer is added to the chassis between the main members and the spring hangers to raise the unit as the straight axle drops the camper by 50mm. This will return the camper to standard Outback height.

A coupling CANNOT exceed 460mm whether it be a Trigg, Hyland or a standard ball setup.

Hope this helps.

Black Diamond · March 21, 2011, 07:14:01 PM

Quote from: cdboi84 on March 21, 2011, 06:52:42 PM
It's all got to do with overlay axles and straight axles. What you'll find is most Pop Top Jayco Outback units have 1600/2000kg straight axles due to their weight, however Camper are lighter so therefore only have overlay 1450/1600kg axles.

Some Hawk, Eagle, Swan & Flamingo's will be upgraded to 2000kg straight axles from 1600kg depending on the options fitted due the axle loading and braked capacity. This is also the case when you opt for larger rims and tyres due to braking capacity. The Flamingo ST is standard with a 2000kg straight axle due to the weight of the unit.

When Jayco believe a unit will be over weight they'll fit a 50mm packer with a 2000kg axle so the unit will have a legal loading and braking capacity. The 50mm packer is added to the chassis between the main members and the spring hangers to raise the unit as the straight axle drops the camper by 50mm. This will return the camper to standard Outback height.

A coupling CANNOT exceed 460mm whether it be a Trigg, Hyland or a standard ball setup.

Hope this helps.

Hey Macgyver nice work

Im gunna pop my head out shortly and check

cheers
BD

Moto Moto · March 21, 2011, 07:40:44 PM

Quote from: cdboi84 on March 21, 2011, 06:52:42 PM
It's all got to do with overlay axles and straight axles. What you'll find is most Pop Top Jayco Outback units have 1600/2000kg straight axles due to their weight, however Camper are lighter so therefore only have overlay 1450/1600kg axles.

Some Hawk, Eagle, Swan & Flamingo's will be upgraded to 2000kg straight axles from 1600kg depending on the options fitted due the axle loading and braked capacity. This is also the case when you opt for larger rims and tyres due to braking capacity. The Flamingo ST is standard with a 2000kg straight axle due to the weight of the unit.

When Jayco believe a unit will be over weight they'll fit a 50mm packer with a 2000kg axle so the unit will have a legal loading and braking capacity. The 50mm packer is added to the chassis between the main members and the spring hangers to raise the unit as the straight axle drops the camper by 50mm. This will return the camper to standard Outback height.

A coupling CANNOT exceed 460mm whether it be a Trigg, Hyland or a standard ball setup.

Hope this helps.

That's a pretty handy explanation, and only your second post on Myswag. Nice work.

Black Diamond · March 21, 2011, 07:43:06 PM

Just had a look underneath.
Has the 50mm square tubing between the hanger and chassis which extends right back to the rear hanger so all looks to be in order

Thanks CDB

Obviously i spoke to the wrong person at Jayco.

Ha Got ya! You work for Jayco! Check his Profile

cheers BD

Teabag · March 21, 2011, 08:02:30 PM

So, we now have a worker from Jayco on here. I hope he has a good sense of humour.......

PS: Thanks for the good oil and insight.

D4D · March 21, 2011, 08:06:59 PM

You can't claim he works for Jayco just on the website in his profile

cdboi84 · March 21, 2011, 08:25:04 PM

Hey Guys... always happy to help with the small amount of knowledge I have

V8ute · March 21, 2011, 08:35:55 PM

Quote from: cdboi84 on March 21, 2011, 08:25:04 PM
Hey Guys... always happy to help with the small amount of knowledge I have

If a Jayco has a ATM of 1538 kgs should it have a 1500 kg axle or 2000 kg axle???
Cheers V8ute.

Black Diamond · March 21, 2011, 08:38:45 PM

Quote from: cdboi84 on March 21, 2011, 08:25:04 PM
Hey Guys... always happy to help with the small amount of knowledge I have

Top Stuff mate

Now get ready for the barrage of questions ...............

All good mate thanks again

cdboi84 · March 21, 2011, 08:44:47 PM

ATM includes the ball weight, work off the the GTM which is the Tare + Loading for the braked axle capacity. The GTM needs to equate to less than the axle rating.

I would assume the axle is a 1600kg axle but with 15" rims the braked capacity then drops to 1500kg so as long a the GTM is under this weight then that would be fine.

By the way i'm questioned out lol

V8ute · March 21, 2011, 08:46:50 PM

Thanks 4 your help/knowledge.
Cheers V8ute.

Teabag · March 22, 2011, 06:54:32 PM

OK, finally checked mine and yes it has the 50mm spacer the same as Black Diamonds but the thing I did notice was another spacer of about 20mm between the axel and spring? This would decrease height another 20mm and not sure why considering Nutto's is still at lease a couple of inches higher than mine......WTF.....

Brett B · March 22, 2011, 07:52:39 PM

The 20 mm spacer is a locator for the centerbolt on the springpack
20 mm spacer should be welded to the axle

Brett

Black Diamond · March 22, 2011, 09:23:15 PM

Quote from: Teabag on March 22, 2011, 06:54:32 PM
OK, finally checked mine and yes it has the 50mm spacer the same as Black Diamonds but the thing I did notice was another spacer of about 20mm between the axel and spring? This would decrease height another 20mm and not sure why considering Nutto's is still at lease a couple of inches higher than mine......WTF.....

Mine is 10mm and welded in place.

Burnsy · March 22, 2011, 09:48:18 PM

Quote from: Teabag on March 22, 2011, 06:54:32 PM
OK, finally checked mine and yes it has the 50mm spacer the same as Black Diamonds but the thing I did notice was another spacer of about 20mm between the axel and spring? This would decrease height another 20mm and not sure why considering Nutto's is still at lease a couple of inches higher than mine......WTF.....

I would say that the 2000kg upgrade in this case is worth far more than just the axle. Having this section of chassis supported by the additional 50x50 tube is a real good thing given that it is the area that Jaycos have historically formed cracks in their chassis.

When ordering do you give Jayco your car hitch height? Your camper seems to sit level with your hitch height so maybe the packer was put in there by them to get to the level you needed. Another explanation could be that they work out spring compression with the van wet (all water tanks, gas bottles, batteries and jerry can holders full) and use packers to bring them to a standard height based on this. Are yours and Nuttos van exactly the same specs, if not I would suspect he has a higher wet weight and therefore did not warrant the packers? Then again maybe I am over complicating things and Jayco just do watever they feel like on the day

cdboi84 · March 22, 2011, 09:56:47 PM

Teabag, remember that your van has been optioned to within an inch of its life and all the options add up in weight. You may find the alot of the height difference will have to do with spring compression even though these items have been factory fitted. Also depends on the amount personal gear you've added as Jayco allow 300kg for its camper range except for the Flamingo ST which has 375kg due to the shower & toilet.

Do both your's and Nutto's campers have 15" rims or does one have 16"s?

Jayco didn't get to be the company they are by doing whatever they like and in fact after owning three Jayco's I wouldn't own anything else

With the amount of Jayco owners on here... i'm not the only one who likes them

Black Diamond · March 22, 2011, 10:00:42 PM

Quote from: Burnsy on March 22, 2011, 09:48:18 PM
I would say that the 2000kg upgrade in this case is worth far more than just the axle. Having this section of chassis supported by the additional 50x50 tube is a real good thing given that it is the area that Jaycos have historically formed cracks in their chassis.

When ordering do you give Jayco your car hitch height? Your camper seems to sit level with your hitch height so maybe the packer was put in there by them to get to the level you needed. Another explanation could be that they work out spring compression with the van wet (all water tanks, gas bottles, batteries and jerry can holders full) and use packers to bring them to a standard height based on this. Are yours and Nuttos van exactly the same specs, if not I would suspect he has a higher wet weight and therefore did not warrant the packers? Then again maybe I am over complicating things and Jayco just do watever they feel like on the day

Hey Burnsy you might be on to something here

I remember Jayco asking me what tug i have and they made a note on the order when it was sent to Jayco.
Maybe not relevant but CDBoi84 might be able to answer this.

cheers BD

News: