RGTorque Posted October 14, 2013 Share Posted October 14, 2013 third rear going in the car tomorrow. now a 4.11 (old was 3.55) dont know what the heck was going on with the first two but hopefully this will be sorted as ill be going over the rear prior to install. new rear coming. its from a 07 forester, locking lsd rear. im looking at various 75w90 gl-5 fluids. anyone have any options they want to point out? im looking at motul, liqui moly, eneos, and redline. Link to comment Share on other sites More sharing options...
WestTexasS2K Posted October 14, 2013 Share Posted October 14, 2013 Any of those premium brands work well. Link to comment Share on other sites More sharing options...
xcarguy Posted October 14, 2013 Share Posted October 14, 2013 third rear going in the car tomorrow. now a 4.11 (old was 3.55) dont know what the heck was going on with the first two but hopefully this will be sorted as ill be going over the rear prior to install. new rear coming. its from a 07 forester, locking lsd rear. im looking at various 75w90 gl-5 fluids. anyone have any options they want to point out? im looking at motul, liqui moly, eneos, and redline. What did the previous diffs do? Link to comment Share on other sites More sharing options...
S1Steve Posted October 14, 2013 Share Posted October 14, 2013 third rear going in the car tomorrow. now a 4.11 (old was 3.55) dont know what the heck was going on with the first two but hopefully this will be sorted as ill be going over the rear prior to install. new rear coming. its from a 07 forester, locking lsd rear. im looking at various 75w90 gl-5 fluids. anyone have any options they want to point out? im looking at motul, liqui moly, eneos, and redline. Good News. Will you have it together for BCX meet and the go-cart races after the meet. Hope So....... Link to comment Share on other sites More sharing options...
RGTorque Posted October 15, 2013 Author Share Posted October 15, 2013 the first diff was messed up because the original owner stripped out the bolt holes and cracked the rear cover. i was stupid and replaced it even though all it needed was the diff cover in the back. this diff keeps spitting the driver side axle out and makes a lot of metal inside. steve, im dying to come to the meets. i just cant show my face without my car... hopefully i will have it up and running soon. Link to comment Share on other sites More sharing options...
JohnK Posted October 15, 2013 Share Posted October 15, 2013 third rear going in the car tomorrow. now a 4.11 (old was 3.55) .... anyone have any options they want to point out? im looking at motul, liqui moly, eneos, and redline. How'd you find that an '07 Forester has a 4.11 + LSD? My take on the oil business is that light viscosity (relatively) and good lubrication buy you really tiny increases in power, but unless your competition is really wheel-to-wheel competitive, you're not going to see any difference. Major brand is just fine unless you're just after bragging rights (which are cool also :-) ). Subaru says 0.9 U.S quarts. But, if you're going from a 3.54 to a 4.11, you may think you've died and gone to heaven re the difference in acceleration. I'm figuring to make the same change if my time doesn't run out. Kitcat's post-drive comment about my performance being in the "wuss" category pushed me to it. Link to comment Share on other sites More sharing options...
RGTorque Posted October 15, 2013 Author Share Posted October 15, 2013 when i searched for a rear it was one that came up locally. it may very well be a 07 legacy? all i know for sure is that its supposed to be compatible, 4.11, and locking. Link to comment Share on other sites More sharing options...
jimrankin Posted November 13, 2013 Share Posted November 13, 2013 Evilromeo stated that he is using an '07 Forester replacement rear differential in his S2K. Does anyone have a basic list of which Subaru vehicle model differentials will "fit" our stock S2K's? I'm running a very tall gear, probably in the mid 3:50's and would like to get into something more along the lines of 4:10 or 4:44. Another member of this forum has a spare differential that we are going to check for gear ratio and LSD to see if it has what I need. But if it doesn't I guess it's going to be EBay or craigslist. I've seen Subaru rear differentials listed for anywhere from $175.00 (private sellers) to $550.00 for a warranted used unit from a dealer. Any ideas about what the average going price should be? Link to comment Share on other sites More sharing options...
RGTorque Posted November 13, 2013 Author Share Posted November 13, 2013 hello, the rear i got was a 4:11. i paid $50 for it from a salvage yard. i found it via car-part.com . if you input the model (say 07 legacy) it will bring up all the models that cross reference for you. btw, my car runs FANTASTIC with the 4:11. Link to comment Share on other sites More sharing options...
xcarguy Posted November 13, 2013 Share Posted November 13, 2013 car-part.com. Good web site. Over the years, I've found several parts (including engines and transmissions) using this site. X Link to comment Share on other sites More sharing options...
jimrankin Posted November 13, 2013 Share Posted November 13, 2013 Evil, was yours an LSD? Found a few on Ebay that say 4:44 and LSD, from $100.00 to $550.00 (buy now price but still for auction) for exactly the same part. I'd say your $50.00 find was a good one for sure. I'll give car parts a try. Link to comment Share on other sites More sharing options...
RGTorque Posted November 14, 2013 Author Share Posted November 14, 2013 yes, its an lsd Link to comment Share on other sites More sharing options...
RGTorque Posted November 14, 2013 Author Share Posted November 14, 2013 (edited) check here quick check turns this up 003 Carrier Subaru Forester 121K,1 YEAR WARRANTY Rear; AT (4.444 ratio), locking (XS model) A GG059 $63 Borges Foreign Auto USA-MA(Dighton) Request_Quote 1-800-662-6150 more here. http://car-part.com/cgi-bin/search.cgi?userSearch=int&userPID=1000&userLocation=All+States&userIMS=&userInterchange=BEFB%3E&userSide=&userDate=2003&userDate2=2003&dbModel=70.3.1.1&userModel=Subaru%20Forester&dbPart=440.1&userPart=Carrier%20(see%20also%20Differential)&sessionID=200000000000000000638227169&userPreference=price&userZip=19040&userLat=40.177&userLong=-75.1061&userIntSelect=507904&userUID=0&userBroker=&iKey=&userPage=17 mind you with the 4:11 your at 3000rpm at 60mph. i personally would like a taller 6th gear so i could have a low cruising rpm like i had with my 3:54. this is why i did not opt for the 4:44, though i may buy one for the future. Edited November 15, 2013 by RGTorque Link to comment Share on other sites More sharing options...
jimrankin Posted November 14, 2013 Share Posted November 14, 2013 With what I have now (seems to be a 3:50ish gear) it was a real pig unless you downshifted on the highway, even at 75MPH. Just took too long to get up speed and you could shift to 4th at 75 and still not be in V-tec. 4:11 seems like the best of both worlds. I've got the car apart right now, all new Teflon heims, shoulder bolts and braces for the rear lower link bolt going in so seems like the right time. Shop is full of saw and sanding dust for a few more days but then back to grease again :-). Link to comment Share on other sites More sharing options...
rss Posted November 14, 2013 Share Posted November 14, 2013 min you with the 4:11 your at 3000rpm at 60mph. i personally would like a taller 6th gear so i could have a low cruising rpm like i had with my 3:54. this is why i did not opt for the 4:44, though i may buy one for the future. now i'm really confused, thought i had a 4.44 but maybe not! at ~3500 rpm in 6th i'm going about 75 mph. with 6th at 0.763 and my 25" diameter tires the math supports this for 4.44 final drive ratio, but i had no idea that the S2000 transmission had a secondary gear reduction (1.208 for an F22?). that would place my final drive ratio at around 3.6! am i missing something? Link to comment Share on other sites More sharing options...
powderbrake Posted November 15, 2013 Share Posted November 15, 2013 I have a 4:44, and at 4000 rpm (approximately), I am doing 70 mph Link to comment Share on other sites More sharing options...
RGTorque Posted November 15, 2013 Author Share Posted November 15, 2013 dont know how much it will affect but i do run a 245/40/18 in the rear. next warm day i have ill take the car out and use the gps to give me a accurate speed reading Link to comment Share on other sites More sharing options...
rss Posted November 15, 2013 Share Posted November 15, 2013 dont know how much it will affect but i do run a 245/40/18 in the rear. next warm day i have ill take the car out and use the gps to give me a accurate speed reading yeah if the weather cooperates i'll do that myself this weekend. i was told that my car had a 4.44 when i bought it, but that doesn't seem to be the case. whatever i have works for me fine, but i'm curious what it is. do you know if this secondary gear reduction in the S2000 transmissions is consistent in the ultralites? according to wikipedia, it's a 1.28 reduction gear for the F22 before it gets to the differential. i'm running 255/40/17's in the rear. Link to comment Share on other sites More sharing options...
rnr Posted November 15, 2013 Share Posted November 15, 2013 I have a 4:44, and at 4000 rpm (approximately), I am doing 70 mph Thats is around what I'm at with 275/40ZR-17 rears. No idea what my rear end is but might just jack it up and find out when jim_rankin comes over tomorrow. Link to comment Share on other sites More sharing options...
jimrankin Posted November 16, 2013 Share Posted November 16, 2013 All years 1st-3.133 2nd -2.045 3rd-1.481 4th 1.161 '00 to '03 5th-0.979 6th 0.810 '04 to '07 5th-0.943 6th 0.763 Don't know if there were any changes after the changes shown here for the upsize to the 2.2L motor. Complicates the RPM to tire size calculation. 5th gear is as close to 1to1 as it gets. Link to comment Share on other sites More sharing options...
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