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  #1  
Old 01-13-2022, 10:38 PM
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Transmission Confusion

So the transmission the the X is finally starting to go kaput after 185,000 miles of faithful service. I have a 4.4i, but will a 3.0i auto work in it? I know some of them used the GM 5L40E, but was that the manual or the auto?
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Old 01-13-2022, 10:55 PM
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3.0i use the GM 5 speed. I think all the V8s got 6 speeds. I wish mine had the 6 speed. The 4.11 gears and 5/speed work great at cruise RPMs (2600).
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Old 01-14-2022, 09:56 AM
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Quote:
Originally Posted by X5chemist View Post
3.0i use the GM 5 speed. I think all the V8s got 6 speeds. I wish mine had the 6 speed. The 4.11 gears and 5/speed work great at cruise RPMs (2600).
The M62s had 5 speeds. N62s/facelift cars had the 6 speed
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Old 01-14-2022, 10:50 AM
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No I6 trans will bolt directly to any V8
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Old 01-14-2022, 03:46 PM
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Originally Posted by Nolimite39 View Post
No I6 trans will bolt directly to any V8
Not even the ZF 6HP26 used in the LCI 4.4i AND on the LCI 3.0d (which is I6)?

I think the bell housing and TC on the ZF 6HP26 used in the 4.8iS is different (larger) though... not sure.
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Old 01-14-2022, 03:52 PM
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I should have said no Gasoline model. I have no knowledge of the diesel models prior to F15s
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Old 01-14-2022, 03:59 PM
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Just sayin'

Doesn't help the OP - given their location. OP didn't state year of 4.4i, so current transmission is also an unknown...
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Old 01-14-2022, 04:14 PM
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Just sayin'

Doesn't help the OP - given their location. OP didn't state year of 4.4i, so current transmission is also an unknown...
You right you right. . . I wish we had more diesels available stateside, from all manufacturers. Also if I had to pay the NZ fuel prices I would want highest efficiency possible too or has it gotten better in the last 5 years?
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Old 01-14-2022, 04:31 PM
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Originally Posted by Nolimite39 View Post
... Also if I had to pay the NZ fuel prices I would want highest efficiency possible too or has it gotten better in the last 5 years?
Petrol prices here recently spiked up to well over $10 per US/Gal - so yeah, I'm glad to be running a diesel (at about $6 US/Gal plus road tax) - and getting over 30mpg.

Getting off topic - sorry!

Looks like the pre-LCI 4.4i uses the A5S440Z transmission, while the LCI 4.4i uses the GA6HP26Z. I think the former has the EGS module in the car while the later has the EGS module in the transmission - so they are going to be difficult to interchange. There may be other factors also.
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