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Miky275



Member Since: 14 Jan 2020
Location: Birmingham
Posts: 15

United Kingdom 2008 Range Rover Autobiography TDV8 Buckingham Blue
6HP26 Gearbox Help

Hi. Guys,

I need to change the rear stator bush in my gear box. .But up on looking i have come across 3 different size bushings 26mm, 28.1mm, 30mm Inside diamiter.

Below i have attached some pictuers from lables and engravings. Would some one be able to point me in the right directiion on what size bush i need to order and if possible a part number ?

10688 020 075 is the engrved number on the side of the transmition

Click image to enlarge


8HP42-7000-AA is printed on one of the lables

Thanks for looking annd any help would be apreciated

Regards

Miky
Click image to enlarge


Click image to enlarge

Post #678707 25th Nov 2023 4:48pm
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Alistair



Member Since: 11 Feb 2011
Location: Peterborough / Bordeaux / Andorra
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United Kingdom 2013 Range Rover Vogue SE SDV8 Santorini Black

RRPhil is your man

https://www.fullfatrr.com/forum/topic14798.html

Post #678708 25th Nov 2023 4:58pm
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Miky275



Member Since: 14 Jan 2020
Location: Birmingham
Posts: 15

United Kingdom 2008 Range Rover Autobiography TDV8 Buckingham Blue

Yes i have seen Phil is tthe guru when it comes to Gearbox issues.

Fingers crossed he sees this post as im confident he will know the size bushing i need.

Thanks for the comment

Regards

Miky


Last edited by Miky275 on 25th Nov 2023 8:17pm. Edited 1 time in total

Post #678709 25th Nov 2023 5:02pm
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 963

United Kingdom 

Hmmm. You have the uprated transmission with the 4-planet front epicyclic and the 5A/5B/5C/7D/7E clutch plate combination, so you have the 1068 271 120 input shaft.

As luck would have it, I’ve only ever measured the 1068 271 128 and the 1068 271 114 input shafts so, to be honest, I’m not sure what size bush your 1068 271 120 input shaft uses, but I would imagine that it’s the bigger (30mm) one.

I’m only aware of two bush sizes (26 & 30mm), although our American friends get confused as they have to convert everything to imperial units, so you see references to all sorts of sized bushes.




In any case, the bushings tend to come in kits which include both sizes anyway. The best known/highest quality kits are the ones from Sonnax & Dura-Bond, but there’s a lot of unbranded stuff on eBay, etc. Not sure that I would risk this, though.

Click image to enlarge




Phil

Post #678721 25th Nov 2023 7:00pm
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Miky275



Member Since: 14 Jan 2020
Location: Birmingham
Posts: 15

United Kingdom 2008 Range Rover Autobiography TDV8 Buckingham Blue

Hi Phil,

Thanks for you input. When I'm back at my pc tomorrow I'll put a pic from the web page that said there were 3 size's.

I don't suppose you have a link for me to order the sonax ones please. As the one I'm finding are from the states and postage is ridiculous.

Regards

Miky

Post #678726 25th Nov 2023 7:59pm
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 963

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Quote:
When I'm back at my pc tomorrow I'll put a pic from the web page that said there were 3 size's.

Thanks. I'd be interested to see that.

Quote:
I don't suppose you have a link for me to order the sonax ones please. As the one I'm finding are from the states and postage is ridiculous.

I believe that JPAT (https://www.jpat.co.uk), Automatic Choice (https://www.automaticchoice.com) and Sussex Autos (https://www.sussexautos.com) are all official Sonnax stockists here in the UK.

Phil

Post #678730 25th Nov 2023 8:33pm
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 963

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I’ve just had a quick look on the Automatic Choice website and, sure enough, it shows a choice of 3 bushes – 26, 28.1 & 30mm.

https://www.automaticchoice.com/en/6hp26-bus03 (26mm)
https://www.automaticchoice.com/en/6hp26-bus04 (30mm)
https://www.automaticchoice.com/en/6hp26-bus05 (28.1mm)

Interestingly, it would appear that you can buy the individual bushes from them, if you don’t want to buy a complete kit. I realise that isn’t much use, though, unless you know which size you need - hence your original question.

Phil

Post #678731 25th Nov 2023 8:50pm
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Miky275



Member Since: 14 Jan 2020
Location: Birmingham
Posts: 15

United Kingdom 2008 Range Rover Autobiography TDV8 Buckingham Blue

Hi Phil,

Yea that’s the site where I was looking at it showed the e different size bushings.

I think as you have given me the part number for the shaft they should be able to tell me the correct bushing for that part number.

I shall give them a call Monday to enquire. I shall update on what size they say for the part number you quoted 👍👍

Regards

Miky

Post #678733 25th Nov 2023 8:59pm
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 963

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Unfortunately, Automatic Choice don’t identify the three input shaft options by ZF part number, but I can tell by their list of fit codes that:

‘DRU01’ is 1068 271 128 (26mm bush) https://www.automaticchoice.com/en-gb/6hp26-dru01
‘DRU02’ is 1068 271 114 (30mm bush) https://www.automaticchoice.com/en-gb/6hp26-dru02
‘DRU06’ is 1068 271 120 (the one fitted to your transmission – bush diameter unknown) https://www.automaticchoice.com/en-gb/6hp26-dru06

Adjacent to the section of the input shaft that the stator bush seals against, there are three identical Teflon sealing rings, identified in the diagram below as 71.190



There are two options for these seals in the overhaul kit – 0734 317 256 which have a 24mm outside diameter and 0734 317 392 with 28mm OD.

The 24mm seals fit the 1068 271 128 (26mm bush) input shaft and the 28mm seals fit both the 1068 271 114 (30mm bush) and your 1068 271 120 input shaft. This is why I suspect that your input shaft also uses the 30mm stator bush.


Anyway, it will be interesting to see whether or not they confirm this when you contact them.

Phil

Post #678752 26th Nov 2023 12:10pm
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Miky275



Member Since: 14 Jan 2020
Location: Birmingham
Posts: 15

United Kingdom 2008 Range Rover Autobiography TDV8 Buckingham Blue

Hi Phil,

Well i called Automatic choice today With my initial Question of what size bushing do i need. I told them the part number of the input shaft you supplied me. To which they said that prt number brings nothin up nor dose it cross refrence with ony thing on there system ??? Sad Sad

Also Automatic Choice will only supply to trade only

So then i called Sussex Autos and gave them the same story and they said they will investigate and gert back to me in a few days.

So im still serching in my quest for the bushing size with out having to drop the box out first.

Im thinking i might hope lady luck is on my side and justt order the 30mm one

Regards

Miky

Post #678858 27th Nov 2023 5:18pm
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 963

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Oh dear. This must have sounded like such a straight-forward question when you first asked… 😊

Phil

Post #678889 27th Nov 2023 11:57pm
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Miky275



Member Since: 14 Jan 2020
Location: Birmingham
Posts: 15

United Kingdom 2008 Range Rover Autobiography TDV8 Buckingham Blue

Hi Phil,

Yest it did seem like a straight forward question Laughing Laughing

Ive ordered the sonnax set so fingers crossed but knowing my luck it will be the 3rd one Atomatic choice do.

Hopfully nextweek end will be doing the job so will update once its done

Regards

Miky Laughing

Post #678934 28th Nov 2023 5:14pm
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Miky275



Member Since: 14 Jan 2020
Location: Birmingham
Posts: 15

United Kingdom 2008 Range Rover Autobiography TDV8 Buckingham Blue

Well Up date time. To day took on the dreaded task of pulling the gearbox. Took me an my brother 8 hours from start to finish. You was correct in you estimation Phil it was the 30mm bushing. The old bush has almost 0.7mm wear compared to the new one. Also changed all the solenoids along with seals. Will reset the adaptations tomorrow and do the relearn process. But got it to 5th gear and it held there no random shifting or throwing limp mode. So once the adaptations.have been reset tomorrow fingers crossed it's all good. As even though had a 2 post ramp and a fork lift it was a ba@#ard of a job to do 🤣🤣🤣🤣

Thanks for all your input Phil it was very much appreciated

Regards

Miky

Post #680494 16th Dec 2023 8:06pm
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Phoenix



Member Since: 16 May 2022
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...

Last edited by Phoenix on 23rd Dec 2023 10:00pm. Edited 1 time in total

Post #680495 16th Dec 2023 8:39pm
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 963

United Kingdom 

Yes, congratulations on the rebuild & installation. Thumbs Up

Generally, anything over 50 microns of radial clearance between the shaft and bush will cause excessive leakage, and you are measuring 7x this amount!

Maybe, one day, we’ll find out which particular transmission fits the 28.1mm bush Very Happy

Phil

Post #680512 17th Dec 2023 12:08am
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