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Old 12-01-2017, 05:47 AM
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Default 2.8 y61 diff gears swap

I have a 2.8 y61 with 3 inch exhaust and donator speedbox chip. Goes really good and has good power. However cruising in the highway at 120 kmh the rpms are above 3100. So i am looking at changing my diff ratio to lower the rpm. I run 31.65" tires and do not want to go bigger.

I have some questions about this:

1. I want to put the 4.11 ratio which the 4.2s have. Is it a direct change of the diff gears?

2. Are the y61 and y60 diffs the same?

3. My rear diff has factory lock. Are there 4.2s patrols with factory lock?

4. If i replace my rear diff lock with a lsd diff is everything a direct swap of the diff gears?

Thank you for your time.
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Old 12-01-2017, 09:18 AM
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Is the engine modified or standard?

I think the GQ's had the 4.3 I think 4.1 would be too tall for the little motor unless always driving on the flat.

I find mine is happy to spin at 3000 plus rpm all day.

Cheers

Justin
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Old 12-01-2017, 02:02 PM
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Will gq diff centres fit gu diff if they are both hg or hh
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Old 12-01-2017, 04:03 PM
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Quote:
Originally Posted by parscheese View Post
Is the engine modified or standard?

I think the GQ's had the 4.3 I think 4.1 would be too tall for the little motor unless always driving on the flat.

I find mine is happy to spin at 3000 plus rpm all day.

Cheers

Justin
Engine is standard. Has egr block, zd30 airbox, donator chip and 3inch exhaust. I might need to drop a gear in some occasions but I dont mind
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