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Reduction Box conversions

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PHAT BUG Dave says Bini's a fool

1,698 posts · joined May 2003 ·

#828923
Handycam asked me if I had pics of my set up so I thought it'd be good to share with everyone.

My Baja is running a CB rear end.......




A mate is building a Baja notch and he also wanted reduction boxes, as CB gear is pretty thin on the ground. I decided to be a bit creative.......






We used late type3 (IRS) torsion bars and double spring plates,
I then 3D modelled the Splitty spring plate and Short IRS spring plate in there defult position and designed an adaptor that would go from one to the other maintaining the right angle for the splitty box and hopefully clear the shock mount.
The llaser cut plates seem to be perfect, I'll still need to Design a spacer between the plate and hub.
Hopefully this helps a bit Cam.

If anybody else has done their own conversions or has any questions please post away 🙂

nbturbo Veteran Volks Folk

2,171 posts · joined Dec 2002 ·

#828951
Did you not keep the CB torsion bars and spring plates? What have you done up front with the spindles?

PHAT BUG Dave says Bini's a fool

1,698 posts · joined May 2003 ·

#828970
The Notchback is getting a Splitty gear box not CB, the set up is completely different.
Up front it's been raised two splines.

handycam king of something

1,338 posts · joined Oct 2003 ·

#829026
thanks mate ive never seen the country buggy set up thats what i was interested in" looking at idears for my baja as its only for fishing ect not hard core ????

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#829157
Am loving those springplates. They are a work of art!

I hope those bolts are fine thread and locktighted/nylocked.


Smiley 😎
If you said I was a Volkswagen man, you'd be right.

63baja Casual Dubber

40 posts · joined Mar 2011 ·

#833499
Has anybody ever seen or heard of reduction boxes being coupled with an IRS rear ??
I was considering tackling this option with the 2wd suby box that I have and an EJ22
Obviously there will be some nutting out to do and some crafty machining work but
I think the theory has merit as you could have maximum suspension travel as well as the instant 3" lift
Also would be able to run the suby box without installing reverse cut gearing
tell me what you think
Cheers Jade😎
An Inch of MOMENTUM is worth a mile of TRACTION

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#833503
63baja wrote:Has anybody ever seen or heard of reduction boxes being coupled with an IRS rear ??
I was considering tackling this option with the 2wd suby box that I have and an EJ22
Obviously there will be some nutting out to do and some crafty machining work but
I think the theory has merit as you could have maximum suspension travel as well as the instant 3" lift
Also would be able to run the suby box without installing reverse cut gearing
tell me what you think
Cheers Jade😎
I'm not to sure but I don't think that the redux boxes/gears will handle the power of a subie engine. They were designed for underpowered 1200s in Kombis, even the Country Buggy only had a 1300 as its largest engine.

But don't let that stop you!! I would love to see it done!!


Smiley 😎
If you said I was a Volkswagen man, you'd be right.

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#833506
Here's a bit of info on this from the Samba.

http://www.thesamba.com/vw/forum/viewtopic.php?t=443820&postdays=0&postorder=asc&highlight=rbg&start=20


http://www.thesamba.com/vw/forum/viewtopic.php?t=203039&highlight=rbg


http://www.thesamba.com/vw/forum/viewtopic.php?t=411865&highlight=reduction+irs


http://www.thesamba.com/vw/forum/viewtopic.php?t=312636&highlight=irs+reduction


Enjoy!



Smiley 😎
If you said I was a Volkswagen man, you'd be right.

PHAT BUG Dave says Bini's a fool

1,698 posts · joined May 2003 ·

#930599
Anyone else running reduction box set ups??

h fractals - an ever changing lifestyle

7,671 posts · joined Feb 2005 ·

#930604
rhett, that looks cool
you need to bring it up this way for a play up to DI and the bush tracks around our place
I'm sure the local off roaders would come out and play to 👍
fractal geometry; the inner most limits of mind altering abuse

Fantasy http://seventhchronicle.com

Z = Z2 + C1/r = 1/0 = infinity

Barrels www.barrelman.com.au

VW Workshop - aircooledgarage.com.au
allcooled.com.au

PHAT BUG Dave says Bini's a fool

1,698 posts · joined May 2003 ·

#930606
Thanks Pauly,

We've got a few off-road dubs in the build at the moment, would be cool to take a trip north and maybe catch a show or two along the way.

I've been changing a few things on the Baja since those pics were taken......





I'm thinking once I finish the other projects, I might pull this off the road for a rebuild, body lift, one piece windows, respray, roof scoop etc etc.

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#930649
Sweet looking Baja!

Is that a filler for a second fuel tank in your roof?



Smiley 🙂
If you said I was a Volkswagen man, you'd be right.

PHAT BUG Dave says Bini's a fool

1,698 posts · joined May 2003 ·

#930680
Yes, it had an auxilary 130Lt fuel tank when it crossed the Simpson desert (no longer fitted)

h fractals - an ever changing lifestyle

7,671 posts · joined Feb 2005 ·

#930688
^ haha
to make it serviceable again
you need a sticker saying 'beer goes in here' with hose attached to the occupants jugs for the journey 😉
fractal geometry; the inner most limits of mind altering abuse

Fantasy http://seventhchronicle.com

Z = Z2 + C1/r = 1/0 = infinity

Barrels www.barrelman.com.au

VW Workshop - aircooledgarage.com.au
allcooled.com.au

Bone Officially Full-On Dubber

299 posts · joined Aug 2009 ·

#930805
PHAT BUG wrote:Yes, it had an auxilary 130Lt fuel tank when it crossed the Simpson desert (no longer fitted)
Crossing the Simpson in a baja sounds awesome. A mate of mine assures me that the crossing in a baja will be no problem and highly recommends it !

Caroneten Seriously Crusin Dubber

135 posts · joined Jun 2005 ·

#930823
I had a set of reduction hubs in the rear of a kombi setup for Irs rear. Was a great conversion possibly done by John ALder. I did find with the power of transplante3d motor it had in it, it caused the rear of the kombi to become extremely loose and through out throttle application you had to apply very gently. I have removed this setup and return to a stock rear as want to make this car more of a every day drive. I do have this conversion up for sale.

PHAT BUG Dave says Bini's a fool

1,698 posts · joined May 2003 ·

#931101
Bone wrote:
PHAT BUG wrote:Yes, it had an auxilary 130Lt fuel tank when it crossed the Simpson desert (no longer fitted)
Crossing the Simpson in a baja sounds awesome. A mate of mine assures me that the crossing in a baja will be no problem and highly recommends it !
My folks crossed the Simpson East to West in the baja in 2000, They had an absolut ball, the baja was pretty well set up too, 170Lt Fuel, 80Lt Water tank, Dual batteries, Engle fridge etc etc.

I'll try too dig up some pics.

Bone Officially Full-On Dubber

299 posts · joined Aug 2009 ·

#931116
PHAT BUG wrote:
Bone wrote:
PHAT BUG wrote:Yes, it had an auxilary 130Lt fuel tank when it crossed the Simpson desert (no longer fitted)
Crossing the Simpson in a baja sounds awesome. A mate of mine assures me that the crossing in a baja will be no problem and highly recommends it !
My folks crossed the Simpson East to West in the baja in 2000, They had an absolut ball, the baja was pretty well set up too, 170Lt Fuel, 80Lt Water tank, Dual batteries, Engle fridge etc etc.
I'll try too dig up some pics.
PHAT BUG photo's would be great. In fact any offroad baja photo's are always appreciated !!

baghall Ben Hal Outlaw Bushranger

1,021 posts · joined Jan 2010 ·

#931787
Love those threads Phat Bug. I hope to do a trip across aussy in 2014 once Al is finished. What did they use for the extra fuel, and the water.
68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car

PHAT BUG Dave says Bini's a fool

1,698 posts · joined May 2003 ·

#931888
There was an 80lt water tank where the rear seat base would have been, and the 130Lt tank was a square truck side tank the fitted between the wheel arches in the back parcel shelf area.

bevelhead Seriously Crusin Dubber

161 posts · joined Aug 2008 ·

#933559
Caroneten wrote:I had a set of reduction hubs in the rear of a kombi setup for Irs rear. Was a great conversion possibly done by John ALder. I did find with the power of transplante3d motor it had in it, it caused the rear of the kombi to become extremely loose and through out throttle application you had to apply very gently. I have removed this setup and return to a stock rear as want to make this car more of a every day drive. I do have this conversion up for sale.
PM sent

alex77 Learner Dubber

1 post · joined Dec 2014 ·

#1005313
Nice write up.
I have everything for the conversion just looking for ideas on adapters for the reduction boxes.
Do you hace any pictures of the reduction boxes installed.

lohoon Wolfsburg Wizard

466 posts · joined Sep 2002 ·

#1005331
I have a splitty gearbox axles reduction hubs straight out of my 62 if anyone would like to purchase.