Will GQ Diff centres fit GU. GQ to GU TD42I

[Mudboss]

Hay all
I'm running 35" on a 03 GU TD42I. The Plaque says iv got 3.9 diff centres. wonna go 4.1 to correct speedo and get a bit more stick. Has any1 done this conversion? Shaft sizes ? Bolt Pattern?

Thanks

[BigRAWesty]

Will bolt straight in mate..
4.1 are cheap and dime a dozen.
4.3 thou will correct 35's to near stock ratio but they are sort after, which in turn fetches more $$$

[dom14]

Ebay have quite a few listings.

http://www.ebay.com.au/itm/NISSAN-PATROL-DIFFERENTIAL-CENTRE-REAR-DIFF-3-0-GU-ZD30-DIESEL-4-375-HG43-/231703481178?hash=item35f29a8b5a:g:R38AAOSwiLdWCOW Z

[mudski]

Just be careful as utes have different spline sizes. I think its from the utes.

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[mudski]

Will bolt straight in mate..
4.1 are cheap and dime a dozen.
4.3 thou will correct 35's to near stock ratio but they are sort after, which in turn fetches more $$$
Yeah i went from 4.3 to 4.1 after the conversion and i sold my 4.3s for more than what i paid for the 4.1s. Around 50bux and you can change the speedo gear so its right too.

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[dom14]

Yeah i went from 4.3 to 4.1 after the conversion and i sold my 4.3s for more than what i paid for the 4.1s. Around 50bux and you can change the speedo gear so its right too.

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How do you change the speedo gear mate?!!! Please tell me how to go about it. Thanx.

[dom14]

Just be careful as utes have different spline sizes. I think its from the utes.

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I've had no idea same gear ratio and they can be different spline sizes. It's good to know. Thanx mate.

P.S. Matching the pumpkin code(H233B,etc) doesn't always help?!!

[mudski]

How do you change the speedo gear mate?!!! Please tell me how to go about it. Thanx.
The speedo sensor is located on the left side toward the rear of the gearbox. There will be an electrical lead running to it. A single 12mm, i think its 12mm, hex bolt holds the sensor in. Undo the bolt, remove the sensor, a little oil will come out but not much.
You then need to see what colour the gear is. This will determin what tooth count it is. Red is 15, yellow is 16, blue is 17 and black is 18tooth.
If you put larger tyres on, you need to put a smaller tooth gear on as the speedo will read too low. So a smaller gear will increase the rotations in the sensor. The change is about 6% difference between each gear...
I sell the gears in my store. But if you work out which one you need, let me know and you get a member discount.
http://stores.ebay.com.au/Northern-4x4-parts-AU/Driveline-Brakes-/_i.html?_fsub=7767932017&_sid=1186392727&_trksid=p4634.c0.m322

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Edit: Sorry Dom. This is for the GU's only. Can't be done this way with the Q's as the gears are rare as rocking horse poo. I do believe some people mess with the signals sent to the speedo itself with something. It has been documented here...

[dom14]

The speedo sensor is located on the left side toward the rear of the gearbox. There will be an electrical lead running to it. A single 12mm, i think its 12mm, hex bolt holds the sensor in. Undo the bolt, remove the sensor, a little oil will come out but not much.
You then need to see what colour the gear is. This will determin what tooth count it is. Red is 15, yellow is 16, blue is 17 and black is 18tooth.
If you put larger tyres on, you need to put a smaller tooth gear on as the speedo will read too low. So a smaller gear will increase the rotations in the sensor. The change is about 6% difference between each gear...
I sell the gears in my store. But if you work out which one you need, let me know and you get a member discount.
http://stores.ebay.com.au/Northern-4x4-parts-AU/Driveline-Brakes-/_i.html?_fsub=7767932017&_sid=1186392727&_trksid=p4634.c0.m322

Sent from my SM-P600 using Tapatalk

Edit: Sorry Dom. This is for the GU's only. Can't be done this way with the Q's as the gears are rare as rocking horse poo. I do believe some people mess with the signals sent to the speedo itself with something. It has been documented here...

Where do you get those gears from?!
Thanx

[mudski]

Where do you get those gears from?!
Thanx

For the GQ? I'm yet to find anyone with enough stock. As I would buy 20-30 of each gear. I contacted Nissan Japan, US and the UK, and they wanted a stupid price for what they had left and they are no longer in production. So I left it at that. There is a way to adjust the GQ speedo. Im pretty sure of it. Something to do within the speedo head itself I think.

[nissannewby]

Just be careful as utes have different spline sizes. I think its from the utes.

Sent from my SM-P600 using Tapatalk

This is only for the rear where the h260 was fitted. The 260 had different spline counts between the coil and leaf diff and both 260s have a different count to the 233.

[dom14]

This is only for the rear where the h260 was fitted. The 260 had different spline counts between the coil and leaf diff and both 260s have a different count to the 233.

H260 is a different pumpkin size. I'm guessing we can know straightaway 'cos H260 is slightly bigger than H233 ?!!

[dom14]

For the GQ? I'm yet to find anyone with enough stock. As I would buy 20-30 of each gear. I contacted Nissan Japan, US and the UK, and they wanted a stupid price for what they had left and they are no longer in production. So I left it at that. There is a way to adjust the GQ speedo. Im pretty sure of it. Something to do within the speedo head itself I think.

Yeah, probably it's easier to do it electronically if we can't find the right gear for the right price.

[mudski]

This is only for the rear where the h260 was fitted. The 260 had different spline counts between the coil and leaf diff and both 260s have a different count to the 233.

Thanks. I couldn't remember exactly which/ what it was, but though it was good to let the op be aware atleast.

[Mudboss]

I just went to my Nissan dealer and got my speedo gear. could only go down one tooth. the next size down was from an auto n didn't fit (TB45 auto)

[Mudboss]

Still need to drop my speedo speed down by 5Km and wand to slow my low range speed down. Thanks Fellas