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Jackaroo torsion bar wind up

Tech talk for GMH/Isuzu and Great Wall owners

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Posts: 6
Joined: Tue Mar 17, 2009 7:25 am
Location: perth,WA

Jackaroo torsion bar wind up

Post by bigbruiser »

Hi all

Just abuot to purchase a 2000 jackaroo.
can any other jack owners out there that have wound up their torsion bars had any trouble hitting their bump stops when traveling over deep rutts?

cheers bb
Posts: 10
Joined: Sun Aug 31, 2008 3:13 pm
Location: Perth, Western Australia

Post by Fiisher »

No problems with mine.
Posts: 6
Joined: Tue Mar 17, 2009 7:25 am
Location: perth,WA

Post by bigbruiser »

cool cheers.

This is just my 2nd 4wd and don't know that much about them so you'll proberly get a few beginer questions form me.

What is a diff drop and how does it work?
Can i do that instead of winding the torsion bars?
all i want to do is lift 2-3 inches
Posts: 10
Joined: Sun Aug 31, 2008 3:13 pm
Location: Perth, Western Australia

Post by Fiisher »

A diff drop is HELL!!
I have one and it was the biggest PITA to install on your own. It would have been ok if I had someone to help me with some bits.
Basically what it does is fix your CV angles so you don't break CVs and tear boots all the time. Without it you can only go to a maximum of a 2" lift. With it you can get it up to around 3-3.5". I would never go above 3" though.
To explain it in pics, the CV angles look like this after a 2" lift:
Image
You can see how extreme the angles are, this puts a lot of pressure on the joints and the boots. I split a boot within the first hour of wheeling after my lift because I didn't do a diff drop (my boots were pretty crap anyway).
After the diff drop your angles will look something like this:
Image
That is my car with a 2" lift, the angles are perfect now.

The diff drop is done by dropping the front axle down about 40-50mm. If you are handy with a welder you can do this yourself by doing this with your diff brackets:
Image
Image
Image

Or you can buy them from the US for around $400AUD shipped.
In doing this you will need to modify your X-member as it will hit the drive shaft if you don't. This will require grinding out a gap and welding plate along the bottom to reinforce it - Not very difficult, especially considering you are a welder!

You will then need to do a BJ flip (easy) and cut down the bumpstops on the upper A-arm (also easy).

This whole procedure will take you a good couple of days depending on how handy you are. It took me ages the first time but I think I could now do it in about 8-9 hours.

For the rear you can get some dobinsons coils (3"), some long travel shocks and brake line extensions and that should sort out height and plenty of articulation.

One all this is done you can easily fit 33" tyres and it'll be a weapon off-road.

I have a 2.5" lift on mine and 33's and I'm really happy with it. I'm going to bring the back up to a 3" and wind the front up to a 2.75". The only reason I haven't already is because I haven't had my brake lines done yet so I couldn't fit a 3" coil in.

My advice would be to keep it at a 2" lift with 33's and simply fit front diff spacers like they show here: http://forum.australia4wd.com/index.php ... ntry119802
That will drop the diff 1" and give you very reasonable angles for a 2" lift and it's far easier than doing what I did! Oh and it's only about $30!

A 2" lift and 33's will look something like my one:
Image
Image


I saw you are in Perth so if you need a hand installing some of this stuff (for a carton) or if you want to buy a set of 2" coils off me ($110, bought for $185 about 4-5months ago, mint condition) PM me and I'd be happy to help you out.

Cheers
Harry
Posts: 6
Joined: Tue Mar 17, 2009 7:25 am
Location: perth,WA

Post by bigbruiser »

sound nice and easy enough. All i wanted is 33's so the 2 inch sound's good.


Cheers for all the advice mate great help. just gotta pull the wife around now.
Posts: 6
Joined: Tue Mar 17, 2009 7:25 am
Location: perth,WA

Post by bigbruiser »

By the way do you know who is the suplier for the diff bracket's in the usa?
Posts: 10
Joined: Sun Aug 31, 2008 3:13 pm
Location: Perth, Western Australia

Post by Fiisher »

Yeah 2" keeps things simple.
Let me know if you want my 2" coils. They are King spring HD coils, They will fit 33's under them with no dramas and it'll save you a few bob.

The supplier for the diff brackets is a guy name Joe Darlington in the states. He has an online store but it hasn't been working, I PM'd him through another forum. Bloody great bloke, excellent service and great products.

As for the wife. If you wan to win her over, it's easy, just give her the list of prices.
- Coils -$110 (from me or you can get them for $187 new)
- Cheap diff drop - $30
DONE!
You can get shocks too if you want, they'll be about $250 for the rear. You don't need them though.

Then you just need some 33's and some wider offset rims.
Tyres depend on what what you want and if you can get some 2nd handers.
For 2nd handers you could probabl get away with $800-$900 on rims for some 33" muddies.
For new ones you could expect minimum $1200 for tyres, $350 for rims and $120 fitting.
It's worth it though.
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Joined: Fri Oct 08, 2010 7:55 pm

Re: Jackaroo torsion bar wind up

Post by gunna-give-it-a-go »

Hay guys i have a 93 roo which i want to put some 33's on just wonderin the offset on your rims
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