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Suretrac LSDs
- Thread starter atomman
- Start date
IbanezDan51
Well-Known Forum User
I’d be interested to see if that is a suretrac, never came standard in the LSD Subaru did it? You have any pictures inside of yours? I have 2 spare LSD 3.9’s R180’s but believe they are both plated.
I believe mine is running a suretrac Subaru LSD, that's what it was sold to me as by a Subaru specialist from Ireland, I believe I'm right in saying all of the 04/05 3.9 LSD's from the Subaru Sti were suretrac. Not got anything to compare it to however it does make for a lot of fun to drive now!
I may have a picture of the inside of mine somewhere if you're interested...
I may have a picture of the inside of mine somewhere if you're interested...
atomman
Club Member
Some JDM cars had the Suretrac fitted as standard ( WRX STi and the RA spec) , but depends on year.
Going by the gearbox he also has for sale that diff is from a JDM Impreza WRX STi or STi RA from 2001-2002
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atomman
Club Member
Put some pictures up and I will try and work out which it is , do you know if its got HF or HK part number ?
Not all were Surtrac in 04/05 could be a plated they did both in a 3.9 depending on market
Alphabettispaghetti
Club Member
Come on ladies, get a plated 4.44
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atomman
Club Member
Come on ladies, get a plated 4.44
Whats the rev's like on the motorway with the 4.44, Franky ?
Jon there is a guy that breaks scoobies in the midlands think I pinged over his number to you,when you say biasing do you mean the diff from a dccd sti as not all the sti have the dccd,mine has you can give it a spin if you want it’s quite a weird feeling,where I live I’ve got the perfect roads and you can take that windscreen away
Alphabettispaghetti
Club Member
You sound like gaskin
65.6 is 3000rpm 87.4 is 4000 rpm (4.44 diff ratio)
74.6 is 3000rpm 99.5 is 4000 rpm (3.9 diff ratio)
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atomman
Club Member
You sound like gaskin
65.6 is 3000rpm 87.4 is 4000 rpm (4.44 diff ratio)
74.6 is 3000rpm 99.5 is 4000 rpm (3.9 diff ratio)
You must be running taller tyres than me then , With my 4.11 I'm just under 4k @ around 70mph but I need to check with a sat nav, and also change out the speedo drive cog for the right one ,
Alphabettispaghetti
Club Member
It’s based on excel calculators, double checked....
195/70/14
195/70/14
Alphabettispaghetti
Club Member
What a your 5th ratio?
Just dug through and found my photos of when I cracked mine open to check the ratio:
IMG_5590 by Mark Woodrow, on Flickr
IMG_5592 by Mark Woodrow, on Flickr
IMG_5584 by Mark Woodrow, on Flickr
IMG_5563 by Mark Woodrow, on Flickr
From your photos it looks to be a suretrac which is what I thought but I couldn't tell the difference myself. I just know is the 3.9 which keeps my revs at about 3.4k for 70mph cruising and makes roundabouts a lot more fun
I'd be curious to hear more, no idea what the difference between the two or advantages or disadvantages etc....
IMG_5590 by Mark Woodrow, on Flickr
IMG_5592 by Mark Woodrow, on Flickr
IMG_5584 by Mark Woodrow, on Flickr
IMG_5563 by Mark Woodrow, on FlickrFrom your photos it looks to be a suretrac which is what I thought but I couldn't tell the difference myself. I just know is the 3.9 which keeps my revs at about 3.4k for 70mph cruising and makes roundabouts a lot more fun
I'd be curious to hear more, no idea what the difference between the two or advantages or disadvantages etc....
IbanezDan51
Well-Known Forum User
I have one of each I think need to check. I don’t think 450 is unreasonable, if you buy a quaiffe it’ll cost a lot more.
Alphabettispaghetti
Club Member
I think thats about the bottom going rate. They're not getting any cheaper. They're also so much newer.
I do like the idea of the r160 lsd. The 510 boys run big torque through them with zero issues. I'm guessing its the spider gears thats the weak point anyway, which LSD's don't suffer with.