E46, Z4 Differential Upgrade - 3.46 Original BMW - (NO LONGER AVAILABLE)
The 3.46 differential is an Original BMW part and a complete, fully-built differential ready to be bolted in to your E46 3-series or Z4 Roadster/Coupe. The 3.46 ratio was standard on most E46s and Z4s with an automatic transmission. The manual transmission cars came with 2.93 or 3.07 gear sets while automatics got shorter gears to make up for the difference in transmission ratios and extra weight of the transmission. Having the shorter ratio will put you in a better part of the RPM band for any given speed. This makes the car instantly quicker with more power and torque on tap. There's almost no downside aside from the higher revs will decrease fuel economy.
Since this is an Original BMW part it carries the same BMW two year warranty as any other new part. So there's no need to take a chance on a used part from a private seller. Note: depending on the model and your existing diff, you may need to change the output flanges to match the set you currently use. Swapping from your old diff to the new one is acceptable.
Examples: 2002 330i, 5-speed manual, 245/40-17" rear tires
Gear Ratio Gear Speed RPM
2.93 4th 40 MPH 2,000 RPM3.46 4th 40 MPH 2,300 RPM2.93 5th 70 MPH 2,800 RPM3.46 5th 70 MPH 3,300 RPM3.46 5th 128 MPH* 6,000 RPM* - Theoretical speed for 3.07 gears at 6,000 RPM. It doesn't mean this speed is actually attainable. It's only offered for reference.
This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi, with manual transmission
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si, with manual transmission
Since this is an Original BMW part it carries the same BMW two year warranty as any other new part. So there's no need to take a chance on a used part from a private seller. Note: depending on the model and your existing diff, you may need to change the output flanges to match the set you currently use. Swapping from your old diff to the new one is acceptable.
Examples: 2002 330i, 5-speed manual, 245/40-17" rear tires
Gear Ratio Gear Speed RPM
2.93 4th 40 MPH 2,000 RPM3.46 4th 40 MPH 2,300 RPM2.93 5th 70 MPH 2,800 RPM3.46 5th 70 MPH 3,300 RPM3.46 5th 128 MPH* 6,000 RPM* - Theoretical speed for 3.07 gears at 6,000 RPM. It doesn't mean this speed is actually attainable. It's only offered for reference.
This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi, with manual transmission
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si, with manual transmission
T#:
224844
|
Part#:
33107531625
Part#:
33-10-7-531-625
Part#:
33 10 7 531 625
Part#:
33.10.7.531.625
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
5% off MSRP:
$2632.99
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
Qty
E46, Z4 Differential Upgrade - 3.46 Original BMW - (NO LONGER AVAILABLE)
This part does not have vehicle applications yet. For fitment verification, contact our sales team via
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Text Us!
, or
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Product Details
The 3.46 differential is an Original BMW part and a complete, fully-built differential ready to be bolted in to your E46 3-series or Z4 Roadster/Coupe. The 3.46 ratio was standard on most E46s and Z4s with an automatic transmission. The manual transmission cars came with 2.93 or 3.07 gear sets while automatics got shorter gears to make up for the difference in transmission ratios and extra weight of the transmission. Having the shorter ratio will put you in a better part of the RPM band for any given speed. This makes the car instantly quicker with more power and torque on tap. There's almost no downside aside from the higher revs will decrease fuel economy.Since this is an Original BMW part it carries the same BMW two year warranty as any other new part. So there's no need to take a chance on a used part from a private seller. Note: depending on the model and your existing diff, you may need to change the output flanges to match the set you currently use. Swapping from your old diff to the new one is acceptable.
| Examples: 2002 330i, 5-speed manual, 245/40-17" rear tires | |||
| Gear Ratio | Gear | Speed | RPM |
| 2.93 | 4th | 40 MPH | 2,000 RPM |
| 3.46 | 4th | 40 MPH | 2,300 RPM |
| 2.93 | 5th | 70 MPH | 2,800 RPM |
| 3.46 | 5th | 70 MPH | 3,300 RPM |
| 3.46 | 5th | 128 MPH* | 6,000 RPM |
| * - Theoretical speed for 3.07 gears at 6,000 RPM. It doesn't mean this speed is actually attainable. It's only offered for reference. | |||
This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi, with manual transmission
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si, with manual transmission
Prop 65 Warning
- 33-10-7-531-624, 33 10 7 531 624, 33.10.7.531.624, 33107531624
- 33-10-1-428-343, 33 10 1 428 343, 33.10.1.428.343, 33101428343
- 33-10-1-428-344, 33 10 1 428 344, 33.10.1.428.344, 33101428344
- 33107531625, 33-10-7-531-625, 33 10 7 531 625, 33.10.7.531.625
