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Reduction Box conversions
PHAT BUG - March 1st, 2011 at 07:46 PM

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.......

http://i78.photobucket.com/albums/j92/phatvw/IMG_0581.jpg
http://i78.photobucket.com/albums/j92/phatvw/IMG_0582.jpg

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.......

http://i78.photobucket.com/albums/j92/phatvw/IMG_0591.jpg
http://i78.photobucket.com/albums/j92/phatvw/IMG_0590.jpg
http://i78.photobucket.com/albums/j92/phatvw/IMG_0589.jpg
http://i78.photobucket.com/albums/j92/phatvw/IMG_0592.jpg

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 - March 1st, 2011 at 09:10 PM

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


PHAT BUG - March 1st, 2011 at 11:02 PM

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 - March 2nd, 2011 at 04:52 PM

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 - March 3rd, 2011 at 04:55 PM

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

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


Smiley :cool:


63baja - March 31st, 2011 at 09:40 PM

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:cool:


Smiley - March 31st, 2011 at 10:33 PM

Quote:
Originally posted by 63baja
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:cool:


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 :cool:


Smiley - March 31st, 2011 at 10:58 PM

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

http://www.thesamba.com/vw/forum/viewtopic.php?t=443820&postdays=0&po...


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


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


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


Enjoy!



Smiley :cool:


PHAT BUG - November 11th, 2012 at 07:05 AM

Anyone else running reduction box set ups??


h - November 11th, 2012 at 07:25 AM

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 :tu:


PHAT BUG - November 11th, 2012 at 07:35 AM

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......

http://i78.photobucket.com/albums/j92/phatvw/2011-10-04230341.jpg

http://i78.photobucket.com/albums/j92/phatvw/2011-10-04230324.jpg

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 - November 11th, 2012 at 01:32 PM

Sweet looking Baja!

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



Smiley :)


PHAT BUG - November 11th, 2012 at 05:26 PM

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


h - November 11th, 2012 at 05:49 PM

^ 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 ;)


Bone - November 12th, 2012 at 09:17 AM

Quote:
Originally posted by PHAT BUG
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 - November 12th, 2012 at 12:27 PM

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 - November 13th, 2012 at 10:39 PM

Quote:
Originally posted by Bone
Quote:
Originally posted by PHAT BUG
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 - November 14th, 2012 at 06:23 AM

Quote:
Originally posted by PHAT BUG
Quote:
Originally posted by Bone
Quote:
Originally posted by PHAT BUG
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 !!


PHAT BUG - November 14th, 2012 at 07:02 AM

I haven't found those pics yet but there's some here of their 2005 Simpson trip in Kombis........

http://forums.aussieveedubbers.com/viewtopic.php?tid=44658#pid416334 


PHAT BUG - November 14th, 2012 at 07:18 AM

A couple of the 2000 trip........

http://forums.aussieveedubbers.com/viewtopic.php?tid=8789&page=1#pid71734 


baghall - November 18th, 2012 at 06:40 PM

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.


PHAT BUG - November 19th, 2012 at 06:36 AM

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 - November 29th, 2012 at 09:51 PM

Quote:
Originally posted by Caroneten
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 - December 15th, 2014 at 12:23 PM

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 - December 15th, 2014 at 04:08 PM

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