Landcruiser stubs and hubs for trailer

Submitted: Wednesday, Sep 23, 2009 at 15:29
ThreadID: 72481 Views:10914 Replies:10 FollowUps:5
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I am planning to build a rather heavy pop-up camper and want, for a number of reasons, to use the stub axle assemblies, disk brakes and 5-stud wheels from a 100 Series Landcruiser front end. They would bolt onto a specially machined flange on each end of the beam axle. Suspension will be heavy hollow section beam axle with Firestone air bags, big shockers, trailing arms and panhard rod - in the hope of achieving soft ride and to provide let-down room to fit the camper into my garage.
I would be grateful if anyone could help me with the following questions:
1. Can anyone see a downside to using the Landcruiser parts, other than cost?
2. I have read somewhere that Landcruiser 5-stud steel rims are rated at about 1,150 kg each. Can anyone confirm? Are mags as strong?Are split rims better?
3. Does anyone have any opinion on whether these hub assemblies would perform reliably under say, a 2,000 kg load over corrugations and moderately rough ground.
4. What hydraulic line pressures will I need to run the Landcruiser discs?
Many thanks
Keith
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Reply By: Member - Graham H (QLD) - Wednesday, Sep 23, 2009 at 15:46

Wednesday, Sep 23, 2009 at 15:46
Dont see any downside

As long as you use adequate high tensile bolts and carry spares

Why not weld them to the axles.

Suggest you talk to a brake place for the rest



AnswerID: 384326

Reply By: Keith Berg - Wednesday, Sep 23, 2009 at 15:55

Wednesday, Sep 23, 2009 at 15:55
Thanks Graham,
I don't think the stubs have enough meat on the flange to get a decent weld on plus a weld will make repairs hard on the track if I bust the stub. I'd prefer to be able to completely dismantle the whole shooting match. Appreciate the advice.
AnswerID: 384329

Follow Up By: Member - Tony S (WA) - Thursday, Sep 24, 2009 at 00:23

Thursday, Sep 24, 2009 at 00:23
Keith,
When I designed and built my off-road camper 35 odd years ago, I used the rear stub axles off a late series Landrover as the bearings were larger and stronger than any other 4by. I then had the ends of the square axle machined down to the length of the stub and the stub was then pressed onto the shaft. The flange is then welded to the axle.
A few years later drum brakes were added.
When I sold it 6 years ago it had done approx 700,000 kays and was on its third set of bearings.Yes they were serviced regularly.
The only problem I had were the "u" bolts. They broke. Get your self some 12 or 16mm HT plate [I forget the grade] cut to match the lower plate , drill 4, 16mm holes through all plates and use 16mm HT bolts and nuts to hold the whole lot to the axle. Once assembled tack the top plate to the axle to stop movement. No more brakages as there is now a direct pull. No curves on square axles or, 90 degree bends to fracture.
Forgot to mention you need Landrover rims.

Sounds complicated, but isn't.

Gees didn't know I could "talk" for so long!

Tony
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Reply By: Travelin OZ - Wednesday, Sep 23, 2009 at 16:01

Wednesday, Sep 23, 2009 at 16:01
You would be better off going to a trailer specialist and getting a 2.2 tonne rated axle and 5 stud Toyota braked hub, easy to get easy to fit and a lot less hassle.

These axles and hubs use the larger bearings.
AnswerID: 384330

Reply By: Sir Kev & Darkie - Wednesday, Sep 23, 2009 at 16:18

Wednesday, Sep 23, 2009 at 16:18
Keith,

I had my Heavy duty Off Road box trailer made with parts form Vehicle Components Trailer parts

Very well made and good value and after sales service.

Cheers Kev
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He was presented with a difficult decision: push on into the stretching deserts, or return home to his wife.

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AnswerID: 384333

Reply By: Keith Berg - Wednesday, Sep 23, 2009 at 16:39

Wednesday, Sep 23, 2009 at 16:39
One of the problems is that the air bag base will be located well inboard of the chassis rail, which puts vastly more bending load on the axle than a leaf spring setup. So the beam axle will have to be a lot stronger that 50x50 or 63 x63. Looks like Duragal 100x100x9, which is actually lighter and stronger. Hence the need for a flange and bolt-on hubs.
I looked at the Cruisemaster Air from Vehicle Components and liked it, but have doubts about it taking its full rated load over rough country and the difficulty with roadside repairs if it does let go.
If I'm going to spend a squillion hours building a camper with all the mod cons, I'd feel better if the running gear is the best that I can make it, within reasonable cost. That means adjustable for load, soft running, light and strong and easliy repairable at roadside.I do hope I'm not dreaming.
AnswerID: 384336

Reply By: Member - Phil G (SA) - Wednesday, Sep 23, 2009 at 16:48

Wednesday, Sep 23, 2009 at 16:48
I've tossed around a few options to do something similar. What do you think of using the chassis off a 105series? The rear end has fully floating bearings, so you can remove the axles and diff and blank them off. The rear end I think is 2600kg - would mean 1300kg per wheel. Brakes are discs with drum handbrake, and you'd already have coils and shocks, and it is naturally a well engineered proven design. Height and weight may be issues.
AnswerID: 384338

Reply By: Member - William H (WA) - Wednesday, Sep 23, 2009 at 18:50

Wednesday, Sep 23, 2009 at 18:50
keith give me your email address and i will send you some picks on how to make your axel from toyota front hubs and discs, look in to my profile and you will see the one i have made for my trailer, or give me a call on 0438 195 777

Cheers for now...WilliamH...Bunbury...WA.
AnswerID: 384359

Reply By: Keith Berg - Wednesday, Sep 23, 2009 at 19:08

Wednesday, Sep 23, 2009 at 19:08
Thanks Phil. I was surprised to see that the 100 series didn't have floating rear axles, so opted for the front. Hearing that the 105 has floating rear axles may be the commencement of my education as I don't know as much as I should about the variuous Landcruiser models. I'd prefer the rear off a 105 to the front off a 100. Dunno about the chassis though. To high? Too flexible? Too heavy? Too awkward? Keith.
AnswerID: 384361

Reply By: Keith Berg - Wednesday, Sep 23, 2009 at 19:10

Wednesday, Sep 23, 2009 at 19:10
Thanks William. Have sent a separate email and will welcome any advice.
Keith
AnswerID: 384362

Reply By: Serendipity of Mandurah (WA) - Wednesday, Sep 23, 2009 at 21:29

Wednesday, Sep 23, 2009 at 21:29
I made a heavy duty camp trailer in 1995 - (bit rough) to be used for camping and to be used as a tradies trailer. I used landcruiser hubs, bearings leaf springs and wheels. For years I just ran split rims but much later I have put on white sunraysia rims.

Over the years I have smashed two lots of bearings and sheared off two lots of wheel studs that totally ruined the rim. One rim was a split rim and the other a sunraysia. Have a photo repairing bearings on the side of the road and at another time a rim that was destroyed. One rim was while on a camping trip and the other was during the week while driving to work as a tradie.

Not sure why this has happened to me but I do think this axle and hubs have been the toughest. I would recommend them. I suspect the sheared studs and stuffed rims is from the harsh country I was in or the heavy load in the trailer as a tradie. Roof Carpenter.Image Could Not Be Found

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AnswerID: 384390

Follow Up By: Richard Kovac - Thursday, Sep 24, 2009 at 01:23

Thursday, Sep 24, 2009 at 01:23
Serendipity of Mandurah (WA)

Did you have the trailer wheels balanced?

Regards

Richard
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Follow Up By: Serendipity of Mandurah (WA) - Thursday, Sep 24, 2009 at 08:39

Thursday, Sep 24, 2009 at 08:39
Hi Richard

Yes. The first bearings I smashed where up in the Kimberley on a maiden journey. I had originally set up with standard axle with holden bearings but landcruiser hub pattern. Went fine for most of the trip and then one day I whipped the trailer around a corner. Didn't notice anything for a couple of Ks until looking in the mirror the trailer was tracking 6 inches to the right. Bearings were chewed out.

The wheels looking like the one above and the white sunraysia - well I just don't know. The white sunraysia just snapped all the studs off and disappeared into the bush. Took 1/2 an hour to find the rim. I think the nuts came loose to start with and then started to work on the holes and studs until - pop. Why did they come loose - My guess is the wheels are too heavy without the load of a landcruiser on them. Just a guess.

David

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Follow Up By: Richard Kovac - Thursday, Sep 24, 2009 at 13:20

Thursday, Sep 24, 2009 at 13:20
David

Thanks

I've been thinking of up grading the axle, hubs, and wheels on my old CT from the 14" wheels to 5 stub LC splits as per the Troopy.

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We have not used it since 2005 as it broke the chassis and it took me 3 years to get around to fix it (slack).

We decided that we would not take a trailer out in the desert again, so it's been retired to soft work.

I will take a trip over to Martin's trailer Spears and check them out.

The reason for asking re. balance of trailer wheels, when ever I ask to have them balance at tyre shops they look at me like its a waste of time.

But the bigger the wheel that is unbalanced the greater load on all the unsprung weight.

Cheers

Richard
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Follow Up By: Serendipity of Mandurah (WA) - Thursday, Sep 24, 2009 at 18:24

Thursday, Sep 24, 2009 at 18:24
Hi Richard

I traveled for years on split rims thinking they are tougher and easier to change if you had a flat.Well having flats is what I had all the time. Mostly from rust getting into the tube and cutting it. Destroyed a couple of good tyres by not being able to stop quick enough. I finally changed my car and trailer to white sunraysia rims tubelss and have been much happier. Much easier to fix puntures with the sticky rope and they look better on the car.

Last year I updated to the new cruiser and they come with mag rims.

I would recommend trading split rims for the white sunraysia rims any day. Having the same rims, leaf springs, hubs and bearings has been great for spare parts - especially for going into remote areas. One time I sheared off the axle studs on the hub while out in the middle of Arnhemland. Because I carried the spares I could fix them. The bearings you see me replacing was remote Kakadu. The damaged rim was remote Ningaloo on the side of the highway. Having those spares which were the same for the car and the trailer was real handy.


David

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