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volvo m40 gear reducer.

 
 
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Russ24
Just got MTs


Joined: 25 May 2010
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Location: crawley



PostPosted: Thu Jan 13, 2011 1:29 am    Post subject: volvo m40 gear reducer. Reply with quote

morning


erm...

volvo m40 gear reducer... talk to me.... i can guess what it does but, what does it entail doing to your sj?

http://www.youtube.com/watch?v=wCPGwyqYrew&feature=related

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selling many parts for 2001 yamaha fazer 600 (FZS600)
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xamtex
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Joined: 02 Dec 2003
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PostPosted: Thu Jan 13, 2011 4:34 am    Post subject: Reply with quote

you add a volvo m40 gearbox (which is a very small gearbox)in between your std gearbox and the transfer case input(in place of the short prop)...this provides extra gear reduction....another gearbox that can be used in the same way is from an old bedford cf van. Smile
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Diesel Destroyer
Mud Obsessed


Joined: 27 Jan 2006
Odometer: 6921
Location: Under the truck covered in EP90



PostPosted: Thu Jan 13, 2011 8:01 am    Post subject: Reply with quote

Waveyzuk had a similar set up.. Bedford CF gearbox fitted..

I have a Bedford CF gearbox and did a bit of work to mod it to fit it where the short prop goes.. But gave up after I couldnt split the box the change the main shaft bearing.

Someone else on here had a Volvo box they were going to fit..

Great mod if you pull it off..

http://forum.difflock.com/viewtopic.php?t=7228&start=0

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http://muddybuggy.co.uk/viewtopic.php?f=17&t=45&start=80
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Kitesurf
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Joined: 28 Feb 2005
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1994 Toyota Surf

PostPosted: Thu Jan 13, 2011 5:43 pm    Post subject: Reply with quote

It's me that has the M40 gearbox. Unfortunately the one I have was the overdrive version, so the ley shaft is way too long once the O/D unit was taken off. I need to get it shortened and a plate made to cover the rear bearing. My cunning plan was to make an adaptor for the front flange and get a Suzuki flange fitted on the output end.
The beauty of the old CF and Volvo boxes is that they had removable bellhousings. I am sure other gearboxes could be adapted by taking Mr Angry to the bellhousing. I have a spare SJ410 gearbox that is a bit knackered. I might have a practise on that.
The guy who did the original said there were some vibration issues to start with.

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Diesel Destroyer
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Joined: 27 Jan 2006
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PostPosted: Fri Jan 14, 2011 8:00 am    Post subject: Reply with quote

I thought it was Phil Embarassed

Waveyzuk works really well having such a wide selection of gears.. I just didnt like the flange welded to the input shaft as it means the bearing can't be replaced in the future.

Cult Zuk though

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Russ24
Just got MTs


Joined: 25 May 2010
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PostPosted: Sat Jan 15, 2011 2:32 am    Post subject: Reply with quote

thank you for your responses..

so a CF bedford box for better gearing.

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Built some of it. ->dyslexic<-
/-->>Crawley 4x4 club facebook<<--
selling many parts for 2001 yamaha fazer 600 (FZS600)
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Diesel Destroyer
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PostPosted: Sat Jan 15, 2011 7:40 am    Post subject: Reply with quote

CF gearbox would be ideal... if you can find one Shocked
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4x4menow
Articulating


Joined: 02 Apr 2004
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PostPosted: Sun Jan 16, 2011 7:14 pm    Post subject: Reply with quote

Ive used a supercarry box best mod ive got
Next time i would use a 410 box as i dont need the remote cable operated gearstick
Gear ratio's are very low ive got a 410 engine running samurai axles with 7.50r16 tyres.
Short prop between main gearbox and extra box

Complete box prior to fitting







Had to make a bracket to move the gearstick back from the main gearbox to get it into the right place

I moved the transferbox back 50mm
and the engine forward as much as possible
But even with the short prop removed it is a long way forward
It is possible to get the front shaft of the second box even shorter but it would require machining and i didnt have access or funds to do that
Cheers nick
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