Upgrade to 2 Clutch LSD & 4.10 gears? - E46Fanatics E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Go Back   E46Fanatics > E46 BMW > ///M3 Forum

///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 02-04-2019, 07:51 AM   #1
markfitz14
Registered User
 
Join Date: Jan 2019
Posts: 7
Upgrade to 2 Clutch LSD & 4.10 gears?

My 02 M3 differential went totally bad at 70k miles. The replacement differential is quite expensive, so I looked into used options and rebuilt options. I have read that upgrading the differential can be one of the best ways to put down power. Should I upgrade the LSD to a rebuilt one with a 2 clutch LSD and 4.10 gears? I'm thinking I will be paying the labor no matter what so maybe I should go all in. Does anyone have experience using an upgraded LSD such as a 2 clutch LSD or using 4.10 gears?

Last edited by markfitz14; 02-04-2019 at 01:58 PM.
markfitz14 is offline   Reply With Quote
Old 02-06-2019, 07:41 AM   #2
Feffman
Registered User
 
Join Date: Nov 2006
Location: Gateway To The West
Posts: 633
My Ride: BMW M3 (Race Car)
Mark:

The clutch style LSD on earlier BMW's (E34 M5, E39M5 and others) are, in my opinion, a much better set up for our M3. If you can track down a used one, have it rebuilt, or rebuild it yourself, I think you'll be much happier than re-doing the stock E46 M3 GKN limited slip.

Feff
__________________
Feffman is offline   Reply With Quote
Old 03-20-2019, 11:10 AM   #3
M3AZ
Registered User
 
Join Date: Jun 2018
Location: Phoenix
Posts: 6
My Ride: 2003 M3
The E39 M5 ring and pinion are compatible because they are 210 mm as in the E46 diff, but the case is not the same size.
M3AZ is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-23-2019, 10:58 PM   #4
jbarajas19
Registered User
 
Join Date: Feb 2016
Location: MS
Posts: 1
My Ride: Mustang 5.0
If I am not mistaken the OEM M-Variable differential comes with two clutches. Somebody correct me if I am wrong. I remember reading up on it on the spec sheet.
jbarajas19 is offline   Reply With Quote
Old 06-09-2019, 11:42 AM   #5
elgreengo
Registered User
 
Join Date: Sep 2010
Location: Atlanta, Ga
Posts: 57
My Ride: e46 touring, e36m3
Quote:
Originally Posted by jbarajas19 View Post
If I am not mistaken the OEM M-Variable differential comes with two clutches. Somebody correct me if I am wrong. I remember reading up on it on the spec sheet.
You are mistaken sir. The M-variable is a different architecture than the more traditional ZF family lsd's such as the e39m5 and previous generations of diffs, which mostly have only 2 clutches.
Let me know if you need any diff work or parts!
elgreengo is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON


Similar Threads
Thread Thread Starter Forum Replies Last Post
driving manual tips tEckniks General E46 Forum 107 08-22-2003 06:11 PM
*** UPDATE: review UUC Gen2 Lightweight Flywheel + UUC Sprung Hub Clutch *** B General E46 Forum 27 06-20-2003 01:41 PM
Introducing the new UUC Sprung Hub Clutch - say goodbye to lfw chatter!!! B General E46 Forum 41 05-23-2003 09:30 AM
1/4 mile simulator runs. Stock vs. CAI Captain Obvious General E46 Forum 5 08-19-2002 09:32 AM


All times are GMT -5. The time now is 05:25 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
(c) 1999 - VerticalScope Inc. All rights reserved.