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**Giles** · 5 April 2010, 09:27

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Thanks - very good of you to do this Don - a lot of work typing all that up - I have taken a copy for future use -thankyou

You should send this to the magazine editor this is the sort of thing we all want in the mag

**Klaus Schlueter** · 5 April 2010, 10:45

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Thanks Don, what a job! Unbelievable---Chapeau!!!!!!!!!!!

Do you have the possibility to publish it as a pdf-document?

Klaus

**Dave M** · 5 April 2010, 11:30

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Interesting read Don. Im just in the process of replacing the half shaft oil seals on my car whilst the diffs out. Ive gone through two pullers now and still the flange hasent budged so looks like I will have to have a go with the press at work. I was going to replace the bearings at the same time so looks like the press will be needed for that too based on your experiences doing this job.

dave

**peter f** · 5 April 2010, 11:51

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Great read Don - your'e the man!!!!
Thanks for sharing your endeavours with us lesser mortals. I've fettled the quill shaft bearing on mine, and strengthened it, and swopped my old diff for a 3.45:1 but might have a go at refurbing my old 3.7:1 on the back of your article.
Thanks,
Peter

**zebrastag** · 5 April 2010, 11:54

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Excellent info Don.

I believe i am losing oil through the pinion seal & the os shaft, very new to stag

ownership therefore this sort of information is really useful.

Phil

**DJT** · 5 April 2010, 13:30

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Thanks, Don. I have two diffs in my garage and, potentially another two or three heading my way soon. All will require rebuilding. Fancy a job?

Dave

**jbuckl** · 5 April 2010, 17:35

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Hey Don, one word: fantastic.
Thankyou vey much.
Julian

**elvimto** · 6 April 2010, 01:15

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Don you article is very good and helpful I have rebuilt my diff a few months back. I read the manual in respect to the part about pre loading the pinion shaft bearings page 51.25.19 of the rom and I read the torque to turn the shaft to be in inch pounds as shown lb f in, which would make the torque about 1.25 foot lbs or 15 to 18 inch pounds.
[img]file:///C:/DOCUME%7E1/Stuart/LOCALS%7E1/Temp/moz-screenshot.png[/img][img]file:///C:/DOCUME%7E1/Stuart/LOCALS%7E1/Temp/moz-screenshot-1.png[/img][img]file:///C:/DOCUME%7E1/Stuart/LOCALS%7E1/Temp/moz-screenshot-2.png[/img]Directly below that it states when the slotted nut is tightened to 90 to 120 lb f ft
Please check and verify this is it a typo ? Can anyone confirm this should it be inch pounds or foot pounds?

Stuart

**Guest** · 6 April 2010, 02:47

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Don you article is very good and helpful I have rebuilt my diff a few months back. I read the manual in respect to the part about pre loading the pinion shaft bearings page 51.25.19 of the rom and I read the torque to turn the shaft to be in inch pounds as shown lb f in, which would make the torque about 1.25 foot lbs or 15 to 18 inch pounds.
Directly below that it states when the slotted nut is tightened to 90 to 120 lb f ft
Please check and verify this is it a typo ? Can anyone confirm this should it be inch pounds or foot pounds?

Hi Stuart, You have confused me, not difficult, 15 to 18 ft/lbs is shown in the manual. Interested if anyone has any comment about this.

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Thanks, Don. I have two diffs in my garage and, potentially another two or three heading my way soon. All will require rebuilding. Fancy a job?

Dave

Hi Dave, Thanks for the offer. As I am so polite I will reply with a "No".

While this was not a difficult job the setting up of endfloat, backlash and pinion preload takes some time. It can result in a visit to the "Funny Farm". That is why I suggest this is done over a period of a few weekends. Once again, thanks for the offer !!!!!.

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Thanks Don, what a job! Unbelievable---Chapeau!!!!!!!!!!!

Do you have the possibility to publish it as a pdf-document?

Klaus

Hi Klaus, This is not available in PDF. To produce could be interesting as the thumbnails to the bigger pictures would not show the required detail. I will have a look at the possibility.

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Interesting read Don. Im just in the process of replacing the half shaft oil seals on my car whilst the diffs out. Ive gone through two pullers now and still the flange hasent budged so looks like I will have to have a go with the press at work. I was going to replace the bearings at the same time so looks like the press will be needed for that too based on your experiences doing this job.

dave

Hi Dave, So much easier with a hydraulic press, even though I like to do as much as I can myself the time I spend grinding off the bearings, removing the hubs etcwas wasted and I was not happy with refitting the bearings and hubs in a normal vice.

Don Kennedy

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**elvimto** · 6 April 2010, 03:03

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Hi Don,
I just checked my Haynes book it has info on page 103 chapter 8 rear axle, it shows pinion bearing preload at lbf in and further down the page torque wrench settings all listed as lbf ft
This would indicate to me that the setting for the preload is in lbf in.
If the preload is to much the bearings will fail prematurely, I would hate to have the diff fail. Perhaps someone on the list can verify what the correct setting is.
Did you put in a drain plug on the bottom of you diff?

cheers Stuart

**Guest** · 6 April 2010, 03:37

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elvimto wrote:

Hi Don,
I just checked my Haynes book it has info on page 103 chapter 8 rear axle, it shows pinion bearing preload at lbf in and further down the page torque wrench settings all listed as lbf ft
This would indicate to me that the setting for the preload is in lbf in.
If the preload is to much the bearings will fail prematurely, I would hate to have the diff fail. Perhaps someone on the list can verify what the correct setting is.
Did you put in a drain plug on the bottom of you diff?

cheers Stuart

Hi Stuart, You are correct, a combination of old age brain fade and typo by me even though after your first comment I read the manual a couple of times and I still read it wrong. Fortunately I did tighten mine correctly so no worries. Many thanks and well done for spotting the error, I will correct on the web page later.

Don Kennedy

**Ferds** · 6 April 2010, 06:41

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Don,

A truly amazing piece of work. Thank you.

Can I ask... have you fitted the diff to your car and more importantly, is it quiet?

Finally, when can you rebuild my diff?

Kind Regards

Chris

**Guest** · 6 April 2010, 07:09

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Ferds wrote:

Don,

A truly amazing piece of work. Thank you.

Can I ask... have you fitted the diff to your car and more importantly, is it quiet?

Finally, when can you rebuild my diff?

Kind Regards

Chris

Hi Chris. Yes all quite after a couple of weeks, I will see how things are an a couple of months, hoping all OK then.I suspect that while there is an issue with crownwheel and pinions due to wearsome/most of the noises come from quill shaft and drive shaft bearings and just as important endfloat and backlash.

When can I rebuild your diff, same answer as I gave Dave, No is the polite reply.

I still have the aches and pains from fitting the thing on my own, joys of old age.Not recommended, that is one heavy bugger when you are under the car trying to refit.

Don Kennedy

**elvimto** · 6 April 2010, 12:53

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Don life is a bit easier with this adaptor for your jack it makes removal and installation a lot easier on your body to.

http://s903.photobucket.com/albums/a...t=IMG_1895.jpg

http://s903.photobucket.com/albums/a...t=IMG_1884.jpg

http://s903.photobucket.com/albums/a...t=IMG_1899.jpg

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