Does an 05 STI have a rear LSD? - Page 2

supermarkus · 02-08-2008, 11:51 AM

Yeah, I always thought it was funny that Subaru promotional lit tried to make a distinction between torsen and helical diffs. Anyway, I agree with unclemat on the diff table. If the R180 was the clutch type, what is the new model number for the torsen rear?

**Turninconcepts.com** · 02-08-2008, 12:48 PM

The bigger issue is if you are lifting the inside rear on track your suspension is not as well sorted as you think.

Tony

polyol · 02-08-2008, 01:23 PM

Quote:

Originally Posted by unclemat

Wrong. Torsen = Helical. It's just brand name for the same concept.

And 04-06 have clutch type rear. Here is corrected table:

04: Suretrac F, Clutch R
05: Helical F, Clutch R
06: Helical F, Clutch R
07: Helical F, Torsen Helical R

[/quote]

Wait what? The rear lsd is a clutch lsd???...that was not my understanding. I always thought that the rear diff is helical....not saying you are wrong either...

supermarkus · 02-08-2008, 01:26 PM

Yes, the R180 lsd is a mechanical clutch based lsd IIRC. Only recently did Subaru switch to torsen front and rear.

02-08-2008, 11:51 AM	#16
supermarkus Spec C Club Car: 08 STi, SSM Location: Edmonds Washington Posts: 1,441 Join Date: Dec 2005 Trader Rating: (0)	Re: Does an 05 STI have a rear LSD? Yeah, I always thought it was funny that Subaru promotional lit tried to make a distinction between torsen and helical diffs. Anyway, I agree with unclemat on the diff table. If the R180 was the clutch type, what is the new model number for the torsen rear? This ad is not endorsed by this member. Please register or login to hide this ad.

02-08-2008, 12:48 PM	#17
Turninconcepts.com Authorized Vendor Posts: 4,748 Join Date: Jul 2003 Trader Rating: (50)	Re: Does an 05 STI have a rear LSD? The bigger issue is if you are lifting the inside rear on track your suspension is not as well sorted as you think. Tony

02-08-2008, 01:26 PM	#19
supermarkus Spec C Club Car: 08 STi, SSM Location: Edmonds Washington Posts: 1,441 Join Date: Dec 2005 Trader Rating: (0)	Re: Does an 05 STI have a rear LSD? Yes, the R180 lsd is a mechanical clutch based lsd IIRC. Only recently did Subaru switch to torsen front and rear. This ad is not endorsed by this member. Please register or login to hide this ad.