Which LSD? Need to choose fluid

neilvan · 10-09-2018, 08:34 AM

So my father picked up a used 07 6MT RWD 335i which had a few good oem mods on it (M-sport bumpers, rare options and oem blacklines). Turns out it also has a different diff too.

A large case 3.46 diff with some LSD in it BUT I cant figured out which one it is. I took a pic with a bore camera through the fill hole and these are the 2 features I could see:

20181009_073128 by Neil Vanderlaan, on Flickr

20181009_073028 by Neil Vanderlaan, on Flickr

It is solid except for 2 or 3 of each of those features all the way around and they alternate. The oval one is closer to the ring gear and the other is a spiral opening near the other end of the diff

They dont match M factory (torsen or clutch), Quaife, Wavetrac, Cusco, OS Giken etc? could be be an oem lsd from another older bmw??

King Rudi · 10-09-2018, 09:17 AM

LSD-25 was always my favorite.

feuer · 10-09-2018, 10:19 PM

Maybe you can try to find the previous owner and get info on the LSD.

neilvan · 10-10-2018, 09:31 AM

Quote:

Originally Posted by feuer

Maybe you can try to find the previous owner and get info on the LSD.

I wish. Original owner did modifications then sold to a cousin in which sold to my father. Original owner is back in Hong Kong (apparently).

It would be nice to know which LSD is actually in it but its better than open regardless. I'm thinking some regular 75w90 Redline fluid is what we will be doing if we don't find out.

feuer · 10-10-2018, 12:07 PM

Quote:

Originally Posted by neilvan

I wish. It would be nice to know which LSD is actually in it.

Then I suggest you talk to Florian http://limitedslip.de/

10-09-2018, 08:34 AM	#1
neilvan Major 861 Rep 1,373 Posts Drives: 09 E90 335i M-Sport 6MT RWD Join Date: Nov 2017 Location: Ontario, Canada iTrader: (0) Garage List 2007 BMW E61 530xi [0.00] 1993 Mazda Miata [0.00] 2009 BMW E90 335i [0.00]	Which LSD? Need to choose fluid So my father picked up a used 07 6MT RWD 335i which had a few good oem mods on it (M-sport bumpers, rare options and oem blacklines). Turns out it also has a different diff too. A large case 3.46 diff with some LSD in it BUT I cant figured out which one it is. I took a pic with a bore camera through the fill hole and these are the 2 features I could see: 20181009_073128 by Neil Vanderlaan, on Flickr 20181009_073028 by Neil Vanderlaan, on Flickr It is solid except for 2 or 3 of each of those features all the way around and they alternate. The oval one is closer to the ring gear and the other is a spiral opening near the other end of the diff They dont match M factory (torsen or clutch), Quaife, Wavetrac, Cusco, OS Giken etc? could be be an oem lsd from another older bmw?? Last edited by neilvan; 10-09-2018 at 08:43 AM..
	Appreciate 0 Tweet Quote

10-09-2018, 09:17 AM	#2
King Rudi Lieutenant Colonel 13072 Rep 1,965 Posts Drives: Meat Suit Join Date: Sep 2017 Location: Planet Earth iTrader: (0)	LSD-25 was always my favorite.
	Appreciate 0 Quote

10-09-2018, 10:19 PM	#3
feuer Major General 4289 Rep 9,226 Posts Drives: wife crazy! Join Date: Apr 2015 Location: Chicago, IL iTrader: (5)	Maybe you can try to find the previous owner and get info on the LSD.
	Appreciate 0 Quote