DIY: 335i to M3 Differential Swap

jellish · 03-21-2017, 05:10 PM

Please reference my main thread to get more information on costs and a parts needed: http://www.e90post.com/forums/showthread.php?p=21444153

This writeup was created by Michael Lampton of Engineered Mechanic Mike (https://www.facebook.com/engineeredmechanicmike/)

PDF is attached.

Theewade · 03-22-2017, 11:43 AM

Highly recommend this!!! I installed the whole m3 rear subframe with everything since I got it for around 1300$. Hands down the best idea for what our cars need with fbo. Wish i saw this pdf before i tackled it last month.

akardam · 04-06-2017, 09:39 AM

Superb Writeup!!! Going to do this on the weekend and no doubt this is a huge help!
Thank you!

mike082802 · 04-25-2017, 09:33 PM

i wonder if you got an m3 manual driveshaft if it would have to be shortened. from realoem the difference between the two is 23mm, from your drawing it is 30mm, thats only about 1/4" difference.

Venger · 06-29-2017, 05:06 PM

Quote:

Originally Posted by neuroclast

Please reference my main thread to get more information on costs and a parts needed: http://www.e90post.com/forums/showthread.php?p=21444153

This writeup was created by Michael Lampton of Engineered Mechanic Mike (https://www.facebook.com/engineeredmechanicmike/)

PDF is attached.

Does anyone know if this will work on xi cars?

Maniac0908 · 05-06-2019, 07:59 AM

Quote:

Originally Posted by Venger

Does anyone know if this will work on xi cars?

Would like to know as well!!

sanedo_man · Today, 12:20 PM

Quote:

Originally Posted by Theewade

Highly recommend this!!! I installed the whole m3 rear subframe with everything since I got it for around 1300$. Hands down the best idea for what our cars need with fbo. Wish i saw this pdf before i tackled it last month.

How hard was it to swap the entire frame? specifically the brake lines.

Theewade · Today, 12:46 PM

sanedo_man pretty easy if you have access to a lift. If just using a jack, it’s going to be doable but difficult. Pretty straight forward though. No complications from what I can remember.

03-22-2017, 11:43 AM	#2
Theewade Private 39 Rep 93 Posts Drives: 2019 X5 40i MSport Join Date: Mar 2016 Location: Southington, CT iTrader: (1) Garage List 2019 BMW x5 [8.00]	Worth it Highly recommend this!!! I installed the whole m3 rear subframe with everything since I got it for around 1300$. Hands down the best idea for what our cars need with fbo. Wish i saw this pdf before i tackled it last month.
	Appreciate 0 Quote

04-06-2017, 09:39 AM	#3
akardam 335i 3 Rep 106 Posts Drives: 2007 e92 Manual Join Date: Jul 2016 Location: Houston iTrader: (1)	Superb Writeup!!! Going to do this on the weekend and no doubt this is a huge help! Thank you!
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04-25-2017, 09:33 PM	#4
mike082802 Major 127 Rep 1,025 Posts Drives: 340 Join Date: Feb 2014 Location: ny iTrader: (2)	i wonder if you got an m3 manual driveshaft if it would have to be shortened. from realoem the difference between the two is 23mm, from your drawing it is 30mm, thats only about 1/4" difference.
	Appreciate 0 Quote

Today, 12:46 PM	#8
Theewade Private 39 Rep 93 Posts Drives: 2019 X5 40i MSport Join Date: Mar 2016 Location: Southington, CT iTrader: (1) Garage List 2019 BMW x5 [8.00]	sanedo_man pretty easy if you have access to a lift. If just using a jack, it’s going to be doable but difficult. Pretty straight forward though. No complications from what I can remember. __________________ G05 msport in black shappire, MHD stage2, xHP stage 3, X5m side vents, IKON front spoiler, 21" HRE F11's, RB reflector delete, HRE 10mm and 15mm spacers, custom coding.
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