berkshire40 Posted October 11, 2011 Share Posted October 11, 2011 I'm not sure why it looks different. All 05+ MY STi should be helical unless I am mistaken Mod list & photos _ Link to comment Share on other sites More sharing options...
whitetiger Posted October 11, 2011 Author Share Posted October 11, 2011 ^yes Link to comment Share on other sites More sharing options...
Saul_Good Posted October 12, 2011 Share Posted October 12, 2011 It's a helical and it will fit your Spec B trans. Get it ASAP. It's very low maintenance and should suit your needs fine. Very noticeable difference, you'll wonder why you didn't do it sooner. Link to comment Share on other sites More sharing options...
Drew888 Posted October 13, 2011 Share Posted October 13, 2011 It physically looks a bit different from the pics of others posted here but thanks to you guys I pick it up tomorrow! [URL="http://legacygt.com/forums/vbpicgallery.php?do=view&g=1586"VbGallery/URL] Link to comment Share on other sites More sharing options...
SP3C7R3 Posted October 15, 2011 Share Posted October 15, 2011 what is the going rate for these now? rallispec has them for $1450...yikes. Link to comment Share on other sites More sharing options...
goneskiian Posted October 16, 2011 Share Posted October 16, 2011 Rallispec is where you get the Subaru Helical for the 5mt. Price has gone up $250. Bummer. Link to comment Share on other sites More sharing options...
f1anatic Posted October 16, 2011 Share Posted October 16, 2011 I am not surprised rates have gone up. Any OEM manufacturer is required to make parts for at least 2 past generations of every car. The time for our 5-speed LSD has expired. This item was OEM on the first generation years 1999-2000 revision VI Japanese GC8G. And guess what...it's been a while since. Subaru has now released the 4th Generation Impreza. So now, OEM manufacturing support for first gen was dropped and the factory front LSDs will be harder and harder to find.  Glad I got mine 2 years ago. Whoever intends to keep the car and upgrade that part, better do it soon. Six months from now they may not find that part available anymore. Link to comment Share on other sites More sharing options...
ShadowImg Posted October 16, 2011 Share Posted October 16, 2011 I don't know about that, I think they'll keep making them as aftermarket parts as long as they support motorsports. That was the last time it was on a production version, but I'm sure a lot of the Spec-Cs they sell and any Group N cars, etc get them added. Link to comment Share on other sites More sharing options...
Drew888 Posted October 18, 2011 Share Posted October 18, 2011 Ok, so I picked it up for a steal (thanks Vince!) and it's sitting in my garage because I have to save to have it installed. The labor for this is crazy... I have made 3 inquiries and all want $1k. [URL="http://legacygt.com/forums/vbpicgallery.php?do=view&g=1586"VbGallery/URL] Link to comment Share on other sites More sharing options...
Guest Posted October 18, 2011 Share Posted October 18, 2011 Ok, so I picked it up for a steal (thanks Vince!) and it's sitting in my garage because I have to save to have it installed. The labor for this is crazy... I have made 3 inquiries and all want $1k. With the tranny in the car or out of the car? If the latter they try to rip you off. If with the car, it's not totally out of line, because clutch job itself is easily $600 in labor. Btw, there is no need to open up the tranny for front diff install (contrary to what vacation pix say). All that it takes is removal of the bell housing. I paid $300 (at Rallispec). Even that is quite a bit because it takes no more than an hour grand total, possibly less. But I guess one is paying for having special tools and experience. Someone could tackle this himself, the only difficult thing about is adjusting the backlash/bearing preload and pressing in/out the diff bearings. Link to comment Share on other sites More sharing options...
wpmarky Posted October 19, 2011 Share Posted October 19, 2011 Another review after 15k miles of DD'ing and testing: FWIW, I can see now how some people have said this mod increases understeer. I say this with some caution because alot of people think oversteer = how easy does the tail kick out, and understeer is the opposite. My interpretation of oversteer is different, but I'll save that for the next thread that comes up about "will installing a RSB make my car tail happy?". So, if we stick with oversteer = rear kicking out, then yes this mod decreases that. Previously with the torsen only rear, the car's weight used to feel more centered. During a 180-270 degree turn, I just had to give it a lil more gas mid turn and the car would rotate around a center point inside the car during a 4 wheel power slide. Turn exit would be ease a lil on the gas and wait for the rears to catch traction again slowly, then feather the throttle on the way out. With the FLSD, I have to try harder to get the rear to step out with a combination of more entry speed, more steering wheel turn input, and more brakes. But the car does benefit from being able to get on the gas alot more and sooner than without this mod, so overall the mod is a big plus for me. The rear is harder to step out because most of the weight is being pulled around the corner.  Now the weight is more spread out, and you can feel the power is more spread out too. Now going into a turn, it's more of a pitch it -> 4 wheel slide a lil-> smash the gas at the apex-> have fun. More entry speed + earlier acceleration = good thing, even if the rear doesn't kick out as much. Still highly recommend this mod, no regrets, makes me look forward to onramps and offramps during my DD. Link to comment Share on other sites More sharing options...
nm Posted October 20, 2011 Share Posted October 20, 2011 Another review after 15k miles of DD'ing and testing: FWIW, I can see now how some people have said this mod increases understeer. I say this with some caution because alot of people think oversteer = how easy does the tail kick out, and understeer is the opposite. My interpretation of oversteer is different, but I'll save that for the next thread that comes up about "will installing a RSB make my car tail happy?". So, if we stick with oversteer = rear kicking out, then yes this mod decreases that. Previously with the torsen only rear, the car's weight used to feel more centered. During a 180-270 degree turn, I just had to give it a lil more gas mid turn and the car would rotate around a center point inside the car during a 4 wheel power slide. Turn exit would be ease a lil on the gas and wait for the rears to catch traction again slowly, then feather the throttle on the way out. With the FLSD, I have to try harder to get the rear to step out with a combination of more entry speed, more steering wheel turn input, and more brakes. But the car does benefit from being able to get on the gas alot more and sooner than without this mod, so overall the mod is a big plus for me. The rear is harder to step out because most of the weight is being pulled around the corner.  Now the weight is more spread out, and you can feel the power is more spread out too. Now going into a turn, it's more of a pitch it -> 4 wheel slide a lil-> smash the gas at the apex-> have fun. More entry speed + earlier acceleration = good thing, even if the rear doesn't kick out as much. Still highly recommend this mod, no regrets, makes me look forward to onramps and offramps during my DD. Agreed. Basically, you're adding a ton of grip, all in the front. This makes the car drive a bit more like an FWD car than it used to. If you want to do burnouts it isn't the right mod, but if you want more grip and better handling it is better. You don't actually understeer more, you just oversteer less. You might get into situations where you understeer a bit more early on just because the grip might cause you to enter too fast, but otherwise, it certainly isn't causing your front end to loose traction more. Link to comment Share on other sites More sharing options...
f1anatic Posted October 20, 2011 Share Posted October 20, 2011 Agreed and I will just reiterate my earlier statements. I used to dread making turns on snow covered roads as I would always risk "losing" it. Now I am as confident or even more so in its winter weather cornering abilities as I am in my Forester with traction and stability control. Link to comment Share on other sites More sharing options...
berkshire40 Posted November 22, 2011 Share Posted November 22, 2011 Finally got this in! Pics from the shop should have the car back soon..Looking forward to the snow http://i868.photobucket.com/albums/ab242/berkshire40/Misc/imagejpeg_5.jpg http://i868.photobucket.com/albums/ab242/berkshire40/Misc/imagejpeg_6.jpg Mod list & photos _ Link to comment Share on other sites More sharing options...
Zac88 Posted November 28, 2011 Share Posted November 28, 2011 So for everyone that has done this mod on a 5MT, is there anything else you would suggest doing at the same time? Link to comment Share on other sites More sharing options...
nm Posted November 28, 2011 Share Posted November 28, 2011 So for everyone that has done this mod on a 5MT, is there anything else you would suggest doing at the same time? I got the gears treated. As the transmission's going to be out, I'd be ready to replace any syncros or gears that look rough. Link to comment Share on other sites More sharing options...
Zac88 Posted November 28, 2011 Share Posted November 28, 2011 I got the gears treated. As the transmission's going to be out, I'd be ready to replace any syncros or gears that look rough. How much did the full service cost you? Link to comment Share on other sites More sharing options...
SP3C7R3 Posted December 7, 2011 Share Posted December 7, 2011 are other people using Quaife? Link to comment Share on other sites More sharing options...
derkahn Posted December 8, 2011 Share Posted December 8, 2011 So will a front LSD from a USDM sti work ? I looked and there was a link to ralllispec but it says a jdm part.. I have a line on a US sti lsd and want to snag it if I can .... thanks, Link to comment Share on other sites More sharing options...
whitetiger Posted December 8, 2011 Author Share Posted December 8, 2011 So will a front LSD from a USDM sti work ? I looked and there was a link to ralllispec but it says a jdm part.. I have a line on a US sti lsd and want to snag it if I can .... thanks,  if you are putting it in a spec b 6mt then yes. wont fit in a 5mt. for the 5mt you have to go JDM or aftermarket. Link to comment Share on other sites More sharing options...
derkahn Posted December 8, 2011 Share Posted December 8, 2011 thanks whitetiger... ill have to pass then .. since I have a 5mt .. but there is currently a front lsd for sale on nasioc fellas..$400 I almost bought it.. one of you 6mt guys jump on it. http://forums.nasioc.com/forums/showthread.php?t=2224583 Link to comment Share on other sites More sharing options...
authenticamd Posted December 17, 2011 Share Posted December 17, 2011 This is turning out to be quite an expensive mod. First I have to buy 2x roller bearings, now the shop says they can't just remove the bell housing, so they have to crack the transmission just to make it work. I have a feeling there will be more issues ahead. With the cost of the diff, it's almost 2k in costs already. Luckily, I'm doing the clutch and all related bushing at the same time. Link to comment Share on other sites More sharing options...
authenticamd Posted December 17, 2011 Share Posted December 17, 2011 Can you tell if I need 2 roller bearings? Or perhaps any other stuff I should have known about before buying it... sigh. http://i736.photobucket.com/albums/xx8/authenticamd/IMG_20110929_173444.jpg So I'm told this was not the front differential, but in fact is the rear differential. Is this true? Can anyone tell from the picture? Link to comment Share on other sites More sharing options...
authenticamd Posted December 17, 2011 Share Posted December 17, 2011 Well, I think i answered my own question.... I suppose I should have researched a little bit better. Link to comment Share on other sites More sharing options...
whitetiger Posted December 20, 2011 Author Share Posted December 20, 2011 Gents, i have my ap suretrac rear diff for sale. http://legacygt.com/forums/showthread.php/fs-nj-ny-tri-state-rare-jdm-ap-suretrac-rear-176407.html Link to comment Share on other sites More sharing options...
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