M4 Differential install on F32 435i?

VictorF32 · 06-15-2020, 01:34 AM

Is it possible to swap an m4 differential on a 435i automatic Rwd Lhd?

Boostedphil698 · 06-15-2020, 07:17 AM

Quote:

Originally Posted by VictorF32

Is it possible to swap an m4 differential on a 435i automatic Rwd Lhd?

You can't, because the final drive ratio for the DCT is different (3.46) than the ZF8. The ZF8 final drive is 3.15. Diffsonline can build you an LSD.

2000Z3M · 06-15-2020, 09:47 AM

Quote:

Originally Posted by 435i_Phil

Quote:

Originally Posted by VictorF32

Is it possible to swap an m4 differential on a 435i automatic Rwd Lhd?

You can't, because the final drive ratio for the DCT is different (3.46) than the ZF8. The ZF8 final drive is 3.15. Diffsonline can build you an LSD.

people use to change the final drive all the time.

FaRKle! · 06-15-2020, 10:13 AM

Swapping it in is one thing, getting it to work correctly since it's an e-LSD and the lockup is controlled by a control module is another...

Boostedphil698 · 06-15-2020, 10:42 AM

Quote:

Originally Posted by 2000Z3M

Quote:

Originally Posted by 435i_Phil

Quote:

Originally Posted by VictorF32

Is it possible to swap an m4 differential on a 435i automatic Rwd Lhd?

You can't, because the final drive ratio for the DCT is different (3.46) than the ZF8. The ZF8 final drive is 3.15. Diffsonline can build you an LSD.

people use to change the final drive all the time.

That's unnecessary when you can just get a 3.15 LSD.

2000Z3M · 06-15-2020, 01:15 PM

Quote:

Originally Posted by 435i_Phil

Quote:

Originally Posted by 2000Z3M

Quote:

Originally Posted by 435i_Phil

Quote:

Originally Posted by VictorF32

Is it possible to swap an m4 differential on a 435i automatic Rwd Lhd?

You can't, because the final drive ratio for the DCT is different (3.46) than the ZF8. The ZF8 final drive is 3.15. Diffsonline can build you an LSD.

people use to change the final drive all the time.

That's unnecessary when you can just get a 3.15 LSD.

not true, what if they was fast acceleration times?

Boostedphil698 · 06-15-2020, 01:22 PM

Quote:

Originally Posted by 2000Z3M

Quote:

Originally Posted by 435i_Phil

Quote:

Originally Posted by 2000Z3M

Quote:

Originally Posted by 435i_Phil

Quote:

Originally Posted by VictorF32

Is it possible to swap an m4 differential on a 435i automatic Rwd Lhd?

You can't, because the final drive ratio for the DCT is different (3.46) than the ZF8. The ZF8 final drive is 3.15. Diffsonline can build you an LSD.

people use to change the final drive all the time.

That's unnecessary when you can just get a 3.15 LSD.

not true, what if they was fast acceleration times?

3.15 is pretty damn good. Unless you're tracking, it's not worth switching final drive ratios.

06-15-2020, 01:34 AM	#1
VictorF32 VictorNM 10 Rep 18 Posts Drives: BMW 2016 435i Msport Join Date: May 2020 Location: San Diego, CA iTrader: (0)	M4 Differential install on F32 435i? Is it possible to swap an m4 differential on a 435i automatic Rwd Lhd?
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06-15-2020, 10:13 AM	#4
FaRKle! Brigadier General 4017 Rep 3,540 Posts Drives: 328d Wagon, M2 Comp, i4 eD35 Join Date: Sep 2016 Location: Bay Area, CA iTrader: (4) Garage List 2023 BMW i4 eDrive 35 [0.00] 2017 BMW 328dx Wagon [0.00] 2021 BMW M2 Competi ... [0.00]	Swapping it in is one thing, getting it to work correctly since it's an e-LSD and the lockup is controlled by a control module is another... __________________ -328d Wagon Build Log (with helpful reference links) -My YouTube Channel for some of the best DIYs and in depth information Please don't PM me for suspension recommendations unless interested in paid private consultations.
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