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AuthorTopic: Taking on the black art of the front diff  (Read 9660 times)

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Offline dxmedia

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Taking on the black art of the front diff
« on: May 11, 2010, 14:12:15 »
The pinion has been wining for too long now, so bit the bullet and ordered new bearings crush seal and oil seal.

Reading up and it's doesn't look too bad and it's not really a black art... Should have it done on Thurday just in case I need special delivery parts for Friday.

If I get a chance I'll take a few picks for a write up.
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Offline Bishops Finger

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Re: Taking on the black art of the front diff
« Reply #1 on: May 12, 2010, 00:21:22 »
Hope it goes OK...
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Offline The Smiths

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Re: Taking on the black art of the front diff
« Reply #2 on: May 12, 2010, 00:23:50 »
not too bad

But not sure which one you have thats got a crush sleeve in :? - there are some about, but generally older

should look similar to this:



the ones I have worked on used shims in a D30 (in the picture), crush sleeve in a D35:

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Offline dxmedia

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Re: Taking on the black art of the front diff
« Reply #3 on: May 12, 2010, 07:31:01 »
I've ordered all the parts from from Lighthouse after a good chat with them. It's a D30 on a ZG so I'm taking his word for it they are the right parts.  30 in lb on the pinion after the crush sleeve initially goes.
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1959 Unimog 404 DoKa i6
1996 Jeep ZG i6with 6" suspension lift
1999 2.5 v6 Omega autobahn stormer
2001 1.4 Polo

Offline cooter davenport

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Re: Taking on the black art of the front diff
« Reply #4 on: June 05, 2010, 13:37:41 »
take it easy and keep checking the rolling resistance

and yes there is a good mix up crush and shim d30s out there vin no is critical for parts ordering
« Last Edit: June 05, 2010, 13:48:06 by cooter davenport »
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Offline dxmedia

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Re: Taking on the black art of the front diff
« Reply #5 on: June 07, 2010, 10:10:13 »
All done a couple of weeks ago, and dead easy. Made a 'special tool' up for holding the yoke (I've a XJ yoke and prop on) for torquing it up. Most difficult bit was grinding off the inner bearing without touching the pinion, but that only took 10 minutes.

Quite up front now for the first time in a long time :D
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1959 Unimog 404 DoKa i6
1996 Jeep ZG i6with 6" suspension lift
1999 2.5 v6 Omega autobahn stormer
2001 1.4 Polo

Offline The Smiths

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Re: Taking on the black art of the front diff
« Reply #6 on: June 07, 2010, 18:00:01 »
Excellent :clap:

my special tool is a huge set of sthilsons :lol:
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Offline dxmedia

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Re: Taking on the black art of the front diff
« Reply #7 on: June 07, 2010, 21:01:41 »
2m of 5x50mm plate with a couple of holes drilled seemed to do the job.
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1959 Unimog 404 DoKa i6
1996 Jeep ZG i6with 6" suspension lift
1999 2.5 v6 Omega autobahn stormer
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Offline cooter davenport

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Re: Taking on the black art of the front diff
« Reply #8 on: June 08, 2010, 21:32:52 »
i hope its all fine for you 30 in lbs is a bit tightish if thats your rolling torque but a steady run in will always help
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Offline dxmedia

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Re: Taking on the black art of the front diff
« Reply #9 on: June 09, 2010, 12:51:19 »
Just put 1000 miles on it running around scotland last week if that's what you mean by a gentle run in ;)
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Offline Saffy

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Re: Taking on the black art of the front diff
« Reply #10 on: June 09, 2010, 14:35:18 »
Quote from: dxmedia on June 09, 2010, 12:51:19
Just put 1000 miles on it running around scotland last week if that's what you mean by a gentle run in ;)
thought it was quite
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Offline dxmedia

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Re: Taking on the black art of the front diff
« Reply #11 on: June 09, 2010, 15:10:30 »
Quote from: Saffy on June 09, 2010, 14:35:18
Quote from: dxmedia on June 09, 2010, 12:51:19
Just put 1000 miles on it running around scotland last week if that's what you mean by a gentle run in ;)
thought it was quite


 :-.

 :lol:
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1959 Unimog 404 DoKa i6
1996 Jeep ZG i6with 6" suspension lift
1999 2.5 v6 Omega autobahn stormer
2001 1.4 Polo
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