Centre diff lock on a 80 series cruiser

Submitted: Wednesday, Feb 03, 2010 at 20:43
ThreadID: 75742 Views:3229 Replies:6 FollowUps:8
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Hello ive recently bought a 80 series cruiser petrol full time 4wd with a centre diff lock.

what im wandering is when i put it in high 4 without the centre diff lock on it goes no where but when i put the diff lock on it drive,s great. But it also drive,s great when i put it in low 4wd without the diff lock on.

is anyone able to tell me what the problem is please.
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Reply By: oldpop - Wednesday, Feb 03, 2010 at 20:46

Wednesday, Feb 03, 2010 at 20:46
Reddeer

Would you use in D4D toyota hilux

Regards

Oldpop
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Follow Up By: oldpop - Wednesday, Feb 03, 2010 at 21:01

Wednesday, Feb 03, 2010 at 21:01
Opps Wrong Thread

OLdpop
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Reply By: Member - Rob S (NSW) - Wednesday, Feb 03, 2010 at 21:19

Wednesday, Feb 03, 2010 at 21:19
Has it had freewheeling hubs fitted to the front?
This sounds like what would happen if the hubs weren't locked.
or a broken front axle.
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and that's when I thought I was wrong!

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Follow Up By: Member - Rob S (NSW) - Wednesday, Feb 03, 2010 at 21:26

Wednesday, Feb 03, 2010 at 21:26
When you put it in low 4 the diff locks automaticly.
Unless it's been modified,to be used in low 4 with out the diff lock, a common mod for an 80 series.
good for reverse parking trailers.


Rob.



I only ever made one mistake
and that's when I thought I was wrong!

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Follow Up By: Hairs & Fysh (NSW) - Wednesday, Feb 03, 2010 at 21:36

Wednesday, Feb 03, 2010 at 21:36
Hi Rob,
Maybe it's been disconnected at some point.


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Reply By: Hairs & Fysh (NSW) - Wednesday, Feb 03, 2010 at 21:25

Wednesday, Feb 03, 2010 at 21:25
Hi reddeer,
Check a plug located on the rear of the transfer, in about the 1 o'clock position looking towards the front of the vehicle check for dirt or moisture in the connect. It unplugs in the horizontal plane and has a yellow and blue/black wire attached.
Try disconnecting this and see if it makes a difference.
It Stops Centre Diff Lock being engaged automatically when low range is selected.
Hmmm

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Follow Up By: Member - Rob S (NSW) - Wednesday, Feb 03, 2010 at 22:05

Wednesday, Feb 03, 2010 at 22:05
Hi
The way i read it, is it won't go unless he switches ON the diff lock in high 4.

or the diff lock has to be engaged to drive forward.

ie a mechanical problem.

If the drive train was in working order and the diff lock not egageing due to a wiring fault it would still drive forward

the difflock not engaging would me loss off traction on slippery sufaces

Ah that may be what he is talking about.

I only ever made one mistake
and that's when I thought I was wrong!

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Follow Up By: Member - Rob S (NSW) - Wednesday, Feb 03, 2010 at 22:06

Wednesday, Feb 03, 2010 at 22:06
Hi
The way i read it, is it won't go unless he switches ON the diff lock in high 4.

or the diff lock has to be engaged to drive forward.

ie a mechanical problem.

If the drive train was in working order and the diff lock not egageing due to a wiring fault it would still drive forward

the difflock not engaging would me loss off traction on slippery sufaces

Ah that may be what he is talking about.

I only ever made one mistake
and that's when I thought I was wrong!

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Follow Up By: Hairs & Fysh (NSW) - Friday, Feb 05, 2010 at 12:48

Friday, Feb 05, 2010 at 12:48
After reading it again I agree with you.
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Reply By: Member - Chris & Debbie (QLD) - Wednesday, Feb 03, 2010 at 22:13

Wednesday, Feb 03, 2010 at 22:13
reddeer,
Unless manual locking hubs have been fitted it sounds like you have a broken axle, if it was something more serious you would probably hear about it. Although you say 'bought recently' was it like this when you bought it?
Try this, without the engine running, put it in any gear in H4, centre diff Not locked. Crawl under the vehicle and see if you can turn the front drive shaft. If yes you know there is something broken or missing in the front diff. If not then try turning the rear drive shaft, if this turns then something is broken or missing in the rear diff.

Chris
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Reply By: Member - Fourplayfull - Thursday, Feb 04, 2010 at 14:14

Thursday, Feb 04, 2010 at 14:14
Another option I have used is select any forward gear in High range with CDL off release clutch and if no forward motion, check underneath which tailshaft is rotating. If front then axle, c/v failure or diff problem. If rear then diff problem or damaged rear axle. I had a broken c/v centre with no noises but would jam on the axle spline giving drive.

Cheers John
AnswerID: 402637

Reply By: GerryP - Friday, Feb 05, 2010 at 00:01

Friday, Feb 05, 2010 at 00:01
Inside the front hubs, there is a splined component (don't know what it's called) that the axle slides into. It's bolted on and replaceable. These have been known to wear out allowing the axle to rotate with no drive to the wheel. Do some of the checks outlined earlier and if in the front, that's the first thing I'd be checking. Surprised there's no noise though if something is worn or broken.

Cheers
Gerry
AnswerID: 402751

Follow Up By: reddeer - Friday, Feb 05, 2010 at 09:41

Friday, Feb 05, 2010 at 09:41
Hello i found out last nite that there was a grinding noise i got the wife to listen were it was coming from and it was coming from the right hand front hub.

So what you suggest was rite.

Thankls Wayne.
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Follow Up By: Big Woody - Friday, Feb 05, 2010 at 23:20

Friday, Feb 05, 2010 at 23:20
I agree.

Happened to mine 4 weeks ago. Grinding noise at first but eventually no noise at all but also no drive.

The end result was the end of the long axle had stripped the splines where it goes into the side gear on the diff centre.

I picked up a very good second hand axle for $65 and a new side gear for the diff cost $85.

About a days work and with new gaskets, oil and grease etc. the whole job cost me less than $250.

I hope this helps.

Brett
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