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      11-29-2012, 02:30 PM   #2
Brigadier General

Drives: 2013 BMW M3 ZCP Coupe
Join Date: May 2009
Location: El Segundo, CA

iTrader: (1)

Originally Posted by ole85 View Post
wanting to buy the pinion and gears or a kit if there is a such thing for a 4.10 diff i don't want to change over just in case i hate the set up
The issue is not getting the gears, its finding someone who is willing to install them properly. The M diffy in the E9X M3 is a little finicky when it comes to tolerances in the diff.

Here's page that has the ring and pinion.

You can buy a re-manufactured diff from Here is the webpage..

2013 M3 Coupe-MR/BLK ZCP, ACM test pipes, BPM Stg2 dev. tune and Megan catback, AFE Stg2. with C/F elbow VMRV810 19x10&19X11 275/295 Mich PSS.
Previous rides: 2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk