AlpineRaven Posted December 9, 2005 Share Posted December 9, 2005 On RS Legacy's LSD Diff, how do I find out if its VLSD or Clutch LSD because there is no sticker on the case? And do RS Legacy come with Clutch or Viscous LSD? Oh yeah which one is better Clutch or Viscous LSD? Thanks AP Quote Link to comment Share on other sites More sharing options...
offroadsubaruguy Posted December 9, 2005 Share Posted December 9, 2005 clutch is usually the one people want more, so i would say its better. As for telling which it is, or if you even have one, jack the rear of the car off the ground and spin a wheel. If the other wheel spins the same direction, you have a lsd. i dont know how to tell what kind of lsd it is, but im pretty sure that all the legacy models came wth the vlsd type...... Quote Link to comment Share on other sites More sharing options...
Dr. RX Posted December 9, 2005 Share Posted December 9, 2005 Unfortunately we in the USA never got the RS Legacy (Liberty over there), so there is limited knowledge here. We did get a Turbo Legacy, and in the first year only it came with a VLSD, but it also have a metcal on it that told you that. So if your's doesn't have a metcal on it, and it is a limited slip, I would say it is a clutch type. Quote Link to comment Share on other sites More sharing options...
ferret Posted December 9, 2005 Share Posted December 9, 2005 Viscous coupling...........Front of WRX gets 'mechanical geared type' as Subaru calls it. Attached .pdf explains the rear of Subaru LSD... Quote Link to comment Share on other sites More sharing options...
All_talk Posted December 9, 2005 Share Posted December 9, 2005 Interesting, I hadn’t seen the layout of the rear VLSD, I was surprised to see the asymmetric mechanical layout, but after reasoning through it, it provides equal torque control without using two sections like a typical clutch type. And this set up requires that the VLSD is a 2-way unit, which explains the great balance I feel under deceleration in my T-Leg. The more I learn about the Subaru AWD system, the more I see why it’s superior, it’s incredibly well engineered. Gary Quote Link to comment Share on other sites More sharing options...
ezapar Posted December 9, 2005 Share Posted December 9, 2005 Unfortunately we in the USA never got the RS Legacy (Liberty over there), so there is limited knowledge here. We did get a Turbo Legacy, and in the first year only it came with a VLSD, but it also have a metcal on it that told you that. So if your's doesn't have a metcal on it, and it is a limited slip, I would say it is a clutch type. There's a cool article about one in AU in the December Subiesport mag. Quote Link to comment Share on other sites More sharing options...
Dr. RX Posted December 9, 2005 Share Posted December 9, 2005 There's a cool article about one in AU in the December Subiesport mag.Somehow, they forgot to send me the December issue, I called then yesterday that they are sending me a copy. The February issue has been sent to the distribution center, we should be getting it the first week in January. Quote Link to comment Share on other sites More sharing options...
Dr. RX Posted December 9, 2005 Share Posted December 9, 2005 Interesting, I hadn’t seen the layout of the rear VLSD, I was surprised to see the asymmetric mechanical layout, but after reasoning through it, it provides equal torque control without using two sections like a typical clutch type. And this set up requires that the VLSD is a 2-way unit, which explains the great balance I feel under deceleration in my T-Leg. The more I learn about the Subaru AWD system, the more I see why it’s superior, it’s incredibly well engineered. Gary A viscous unit is like a clutch unit but it uses a viscous fluid between the plates, the units are sealed so the fluid doesn't mix with the differential oil. Quote Link to comment Share on other sites More sharing options...
AlpineRaven Posted December 10, 2005 Author Share Posted December 10, 2005 Righto... I have an Clutch Pack LSD here waiting/ready to go in my car until I recently came up an VLSD from RS Liberty and made me think which should I go for - Clutch or Viscous LSD? Reaso I want it is for better handling in wet, mud, gravel roads plus towing off muddy areas/very wet grass. Does anyone have better picture of VLSD so that I can be 100% sure its VLSD or Clutch Pack LSD? Thankyou guys. AP Quote Link to comment Share on other sites More sharing options...
AlpineRaven Posted December 10, 2005 Author Share Posted December 10, 2005 Sorry another Question - drive shafts subject! Since get Diff is out of the car and I haven't seen the car myself which is another reason I am asking questions about it.... Do you know if they do take normal "Male to Male" shafts same as early to 1995 Legacy? or I require adaptor shafts? Thanks guys AP Quote Link to comment Share on other sites More sharing options...
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