Anyone have a C-306 shaft and reduction hub

Zuk-D-Limit

Hello Differs,

I have a friend here in Spain that competes in trials and on the last trial he has snapped a shaft and a reduction hub from the back axles, left side. The axles come from a C-306 6x6 and the shaft and hub are from the last axle, the one at the back.

Anyone know of where to find these parts second hand???

And what is the maximum Tyre's size these axles can hold?? He on 40" Tyre's and a range rover v8 with auto box which is not as violent on the transmissions. Any suggestions on how to reinforce them???

Thanks for your help and ideas.

Some pics of the machine:

cadiz4x4 · Posted: Mon Jul 07, 2008 9:23 pm Post subject:

Hi Zuk-D-Limit...
my English is very bad….but I want to Giff you the thanks for you interest in helping me,i also would want to give him thanks to my Manolowillys companion, who this helping me much....

this is a photo of the piece that i have broken, I only need to obtain the landing of 78cm, I have others it already located...
It is this normal one that it happens to him to these axes of Volvo?

RichardD · Posted: Tue Jul 08, 2008 8:00 am Post subject:

I know we've been emailing recently and it seems that the centre axle halfshaft is shorter but I can help you with the gears.

Rizla 1 · Posted: Tue Jul 08, 2008 12:37 pm Post subject:

I have a couple of axles up the workshop - and they are 306 - but I never new the shafts are different lengths ?? are you sure ?

What length do you need and i will measure them in the morning

RichardD · Posted: Tue Jul 08, 2008 12:43 pm Post subject:

The differentials are all in slightly different places so the shafts must be different as well.

manolowillys · Gate Opener Joined: 26 Sep 2007 Odometer: 11

[quote="Rizla 1"]I have a couple of axles up the workshop - and they are 306 - but I never new the shafts are different lengths ?? are you sure ?

What length do you need and i will measure them in the morning[/quote

Hi again. the shaft size is 780mm from end to end.

Zuk-D-Limit · Posted: Tue Jul 08, 2008 7:19 pm Post subject:

Thanks for the help guys Very Happy

We will manage to get some solutions.

Now any suggestions on how to strengthen them??? I thought these axles were as strong as Mog axles but it doesnt seem like it, or is it just bad luck they snapped??? Question

RichardD · Posted: Wed Jul 09, 2008 8:07 am Post subject:

Strength is not the problem, with respect. Driving styles always need to be altered to match the limits of the vehicle. I've only heard of these axles breaking when people fit massive engines and then go mad. Not that I object to that, mind Laughing

Zuk-D-Limit · Posted: Mon Jul 14, 2008 6:17 pm Post subject:

Richard been in contact with quite a few people and they agree with you, these axles are strong. I have seen hes driving style and hes good, he doesn't go mad and knows when to give it at the right moment.

I must say I haven't seen the trial where he snapped the shaft, so cant really comment. Hes managed to find a solution, a guy will machine him a new shaft for not a stupid amount of money so lets see how it turns out.

The owner has commented that he thinks he snapped the reduction hub and shaft due to the difflock, he mentions that he thinks that the range rover v8 doesn't create enough vacuum to work the difflock properly, could this be a reason???

I have no idea how this difflock works so no idea if this could be the problem. Any ideas?

Thank you
Herve

Anthony · Off-Road Guru Joined: 05 Mar 2007 Odometer: 1640

It might not be a question of the V8 not producing enough vacuum but rather does this trial machine have enough storage of vacuum or low pressure. the C300 series uses a cross member to store vacuum, ensuring enough low pressure supply.

If the trials machine does not have a storage tank perhaps that might be a consideration. Question

Rizla 1 · Posted: Tue Jul 15, 2008 8:06 am Post subject:

[quote="manolowillys"]

Zuk-D-Limit · Posted: Tue Jul 15, 2008 7:07 pm Post subject:

Rizla keep us posted on that as it might be a solution.

Anthony if I remember correctly it has a small tank for that, but not 100% I will ask him.

Wink

manolowillys · Gate Opener Joined: 26 Sep 2007 Odometer: 11

[quote="Rizla 1"]

Rizla 1 · Posted: Wed Jul 16, 2008 3:19 pm Post subject:

This is what we used a double acting air ram - used with ARB

Not a great picture as my battery was running out - but you can see how i did it

manolowillys · Gate Opener Joined: 26 Sep 2007 Odometer: 11

NICE WORK.WHAT,S THE ACTUATOR TRAVELING?CAN YOU GIVE ME THE PART NUMBER AND REFERENCE OF THE ACTUATOR?THANKS

Rizla 1 · Posted: Thu Jul 17, 2008 1:54 pm Post subject:

The ram is - Air-tac -- number - Acqs-32x20 - with a 20mm stroke

double acting compact air cylinder

manolowillys · Gate Opener Joined: 26 Sep 2007 Odometer: 11

GREAT!

Zuk-D-Limit · Posted: Thu Jul 17, 2008 6:46 pm Post subject:

Rizla I'm learning here but why is this better than the vacuum mechanism?? Is it hard to make it work, or does it fail?

Manolo you have problems with the difflocks on your Unimog axles? I didn't know this.

Its cool to learn things Wink

Rizla 1 · Posted: Fri Jul 18, 2008 8:51 am Post subject:

The vacuum is very slow for trials - with air it is far quicker Smile

Zuk-D-Limit · Posted: Fri Jul 18, 2008 3:03 pm Post subject:

I get it, thats cool, in trials its a must quick connection and disconnection Laughing

Anthony · Off-Road Guru Joined: 05 Mar 2007 Odometer: 1640

The vacuum system of the Volvo offers near instantaneous and very positive lock and unlock faster than near anything else that I have experienced. There must be a problem if it is not working correctly The Volvo is not one of those vehicles that one must drive half a mile before wondering if it is working or not.

Rizla 1 · Posted: Sat Jul 19, 2008 8:26 am Post subject:

Working with fiddle brakes there still not quick enough when your on a section - yank on the lever when there not out a bang goes a shaft.

With this air system they ( should be out ) at the touch of the button