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      03-24-2007, 11:08 PM   #1
Sick Speed
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E92 M3 Rear Diff

Does anyone know what rear diff is being installed in the new E92 M3?

Thanks in advance.

SS
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      03-25-2007, 03:35 AM   #2
E92Alpine328i
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Quote:
Originally Posted by Sick Speed View Post
Does anyone know what rear diff is being installed in the new E92 M3?

Thanks in advance.

SS
look it up you'll see which one it comes with. looks similar to the e92 aero kit with a twist
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      03-25-2007, 04:25 AM   #3
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Quote:
Originally Posted by Alpine325ci View Post
look it up you'll see which one it comes with. looks similar to the e92 aero kit with a twist
He's talking about the rear differential, not the body kit
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      03-25-2007, 04:26 AM   #4
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No info on it yet
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      03-25-2007, 05:26 PM   #5
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E 92 wheels and rims

The owner of one our more reputable after market shops indicated there was information available for the E92 wheel and rim specifications? I would like to buy some new rims for my E46 M3 that I could later transfer to the E92.

Has anyone any info on the E92 wheel and rim specifications yet?

Cheers,
K.
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      03-26-2007, 05:00 AM   #6
southlight
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Quote:
Originally Posted by Kafka View Post
The owner of one our more reputable after market shops indicated there was information available for the E92 wheel and rim specifications? I would like to buy some new rims for my E46 M3 that I could later transfer to the E92.

Has anyone any info on the E92 wheel and rim specifications yet?

Cheers,
K.
Take a look at this

Best regards, south
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      03-26-2007, 10:11 PM   #7
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Good info on rims

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Originally Posted by southlight View Post
Take a look at this

Best regards, south
Thanks South.
This is helpful, so I put in an order for some 19" rims that should be portable.
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      03-01-2008, 01:13 PM   #8
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      03-01-2008, 02:28 PM   #9
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Quote:
Originally Posted by Sick Speed View Post
Does anyone know what rear diff is being installed in the new E92 M3?

Thanks in advance. SS
From the Aftersales Training document.

Final drive
In principle, the final drive is assembled in the same way as in the E6x M5/M6. It is, however, a separate new development.

The bevel gear shaft bearing is a frictionoptimized, double-row, angular-contact ball bearing. The gear ratio between the bevel gear and the crown gear has been adapted to the engine speed and gearbox ratio of the M3.

The final drive ratio is 3.85:1.

The 215 gear set (crown wheel diameter 215 mm) has been temperature and noise optimized. A friction-reduced gearing is used.
The housing of the final drive has been adapted to accommodate the double-row angular-contact ball bearing. The flanges for the propeller and drive shafts are the same as those used on the E6x M5 and M6.

The transmission housing end cover has been modified to ensure optimum gear oil cooling and bevel gear lubrication. The end cover has more ribs, which improves heat exchange. The internal styling of the end cover is adapted according to the size of the differential and the final drive ratio.

This Mfinal drive also has three bearings, with two front bearing and one rear bearing.

Fully variable M differential with locking action
This unique limited slip differential design is based on the E46 M3 and the E6x M5/M6 limited slip differential, where it is described in detail. The function of the limited slip differential has been adapted to ensure that the M3 develops
the best traction at different engine speeds and in every road situation
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Last edited by GregW / Oregon; 03-01-2008 at 07:35 PM.
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      03-01-2008, 07:19 PM   #10
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most important thing...100% wheel locking
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