firehawk618 Posted August 2, 2014 Share Posted August 2, 2014 As you all know from my previous posts I blew out my center differential while brake boosting at the track a few weeks ago. It let loose on my 5th run while brake boosting. I was able to source a used assembly for a great price. I installed the hexmods bushings in the used one that I have installed. As you can see in the pictures below, the pin that goes through the planet gears sheared off. 2 of them sheared, 2 of them hadn't let loose yet. I found several needle bearings in my pan and case BUT they are NOT from the planet gear needle bearings. As you can see most held up fine and one lost 2 needles which were still contained in the retainer. At this point I do not know what order things failed in. I cannot say with any confidence that the failure was only due to the needle bearings in the planet gears. I never did find the source of the needles that I picked out of the transmission. I have not studied a diagram to figure it out yet and don't really care. I won't be doing any full boost launches. I am going to try and come up with a way to limit boost to 8-10 lbs until I lift the brake. Pictures below for your enjoyment! http://i80.photobucket.com/albums/j193/firehawk618/Cars/2006%20Legacy%20GT%20Wagon/Center%20differential%20failure/20140802_152142_zps47b57114.jpg http://i80.photobucket.com/albums/j193/firehawk618/Cars/2006%20Legacy%20GT%20Wagon/Center%20differential%20failure/20140802_152148_zps9af8df8c.jpg http://i80.photobucket.com/albums/j193/firehawk618/Cars/2006%20Legacy%20GT%20Wagon/Center%20differential%20failure/20140802_152151_zpsea9834f1.jpg http://i80.photobucket.com/albums/j193/firehawk618/Cars/2006%20Legacy%20GT%20Wagon/Center%20differential%20failure/20140802_152154_zpse2703db5.jpg http://i80.photobucket.com/albums/j193/firehawk618/Cars/2006%20Legacy%20GT%20Wagon/Center%20differential%20failure/20140802_152158_zps4e6c0167.jpg http://i80.photobucket.com/albums/j193/firehawk618/Cars/2006%20Legacy%20GT%20Wagon/Center%20differential%20failure/20140802_152206_zps5605f766.jpg http://i80.photobucket.com/albums/j193/firehawk618/Cars/2006%20Legacy%20GT%20Wagon/Center%20differential%20failure/20140802_152215_zps6fbd6d33.jpg http://i80.photobucket.com/albums/j193/firehawk618/Cars/2006%20Legacy%20GT%20Wagon/Center%20differential%20failure/20140802_152218_zpsc9e3f53f.jpg 10' CTS-V, A6, Airraid, 2.4 upper, ID850's, self tuned. SOLD:06' LGT Wagon. BNR16G, Catless UP, DOWN, Hexmods VB, Hexmods diff bushings, BIG TMIC. Best 0-60: 4.651 by AP 1/4= 13.678@100.73 mph, 1.945 60', Automatic transmission. Link to comment Share on other sites More sharing options...
firehawk618 Posted August 2, 2014 Author Share Posted August 2, 2014 I also installed the RalliTEC transmission mount insert. I went with the hard blue version. I can certainly feel the NVH difference. I kind of like it so far, I can actually feel my car running now vs before it was very disconnected. 10' CTS-V, A6, Airraid, 2.4 upper, ID850's, self tuned. SOLD:06' LGT Wagon. BNR16G, Catless UP, DOWN, Hexmods VB, Hexmods diff bushings, BIG TMIC. Best 0-60: 4.651 by AP 1/4= 13.678@100.73 mph, 1.945 60', Automatic transmission. Link to comment Share on other sites More sharing options...
McDowell Performance Tunin Posted August 2, 2014 Share Posted August 2, 2014 That's pretty hard core Chad. www.facebook.com/mcdowelltuning [sIGPIC][/sIGPIC] Click Here for Stage1, Stage2 and Stage3 Tuning and eTuning Info Link to comment Share on other sites More sharing options...
firehawk618 Posted August 3, 2014 Author Share Posted August 3, 2014 And here's what it sounds like in case anyone was curious. :o) https://www.youtube.com/watch?v=jXLTewYXgtw&feature=youtu.be 10' CTS-V, A6, Airraid, 2.4 upper, ID850's, self tuned. SOLD:06' LGT Wagon. BNR16G, Catless UP, DOWN, Hexmods VB, Hexmods diff bushings, BIG TMIC. Best 0-60: 4.651 by AP 1/4= 13.678@100.73 mph, 1.945 60', Automatic transmission. Link to comment Share on other sites More sharing options...
Moderators BarManBean Posted August 3, 2014 Moderators Share Posted August 3, 2014 Nice carnage, good to see you're getting it fixed "Bullet-proof" your OEM TMIC! <<Buy your kit here>> Not currently in stock Link to comment Share on other sites More sharing options...
firehawk618 Posted August 3, 2014 Author Share Posted August 3, 2014 Yeah so far so good. 10' CTS-V, A6, Airraid, 2.4 upper, ID850's, self tuned. SOLD:06' LGT Wagon. BNR16G, Catless UP, DOWN, Hexmods VB, Hexmods diff bushings, BIG TMIC. Best 0-60: 4.651 by AP 1/4= 13.678@100.73 mph, 1.945 60', Automatic transmission. Link to comment Share on other sites More sharing options...
jus2phast4uLGT Posted August 5, 2014 Share Posted August 5, 2014 What Rpm were u launching off of? and psi? Link to comment Share on other sites More sharing options...
firehawk618 Posted August 5, 2014 Author Share Posted August 5, 2014 Around 18psi, not sure on the rpms. It was wherever the torque converter held it. I will pull up logs tonight and post exact numbers. 10' CTS-V, A6, Airraid, 2.4 upper, ID850's, self tuned. SOLD:06' LGT Wagon. BNR16G, Catless UP, DOWN, Hexmods VB, Hexmods diff bushings, BIG TMIC. Best 0-60: 4.651 by AP 1/4= 13.678@100.73 mph, 1.945 60', Automatic transmission. Link to comment Share on other sites More sharing options...
jus2phast4uLGT Posted August 5, 2014 Share Posted August 5, 2014 Cool my best 1/4 was 13.89, I tell ppl 13.8 though lol. I'm just stage 2 catless work up, CAI, tunned by infamous. Just bought a 15' wrx. So I'm keeping the new car stock n plan to open the gates for my legacy. I plan to hit the strip Friday n came across ur forum, I brake boosted with my best time too of course but now I'm apprehensive about going all out since I don't have the knowledge/experience of fixing the shit I may break. 1-2 hard runs shouldn't hurt right lol I'm wondering what exact components can I add to reinforce that cdiff n trans? Link to comment Share on other sites More sharing options...
InTheBay Posted August 19, 2014 Share Posted August 19, 2014 Any word where the bearings came from? Link to comment Share on other sites More sharing options...
firehawk618 Posted August 20, 2014 Author Share Posted August 20, 2014 Any word where the bearings came from? Nope, I haven't done any research. So far all is well. 10' CTS-V, A6, Airraid, 2.4 upper, ID850's, self tuned. SOLD:06' LGT Wagon. BNR16G, Catless UP, DOWN, Hexmods VB, Hexmods diff bushings, BIG TMIC. Best 0-60: 4.651 by AP 1/4= 13.678@100.73 mph, 1.945 60', Automatic transmission. Link to comment Share on other sites More sharing options...
snow05gtRI Posted August 20, 2014 Share Posted August 20, 2014 And here's what it sounds like in case anyone was curious. :o) https://www.youtube.com/watch?v=jXLTewYXgtw&feature=youtu.be wow that's brutal. were you releasing the brake when that happened, or did it happen while trying to hold the power? Link to comment Share on other sites More sharing options...
firehawk618 Posted August 21, 2014 Author Share Posted August 21, 2014 Did it while holding the car still. 10' CTS-V, A6, Airraid, 2.4 upper, ID850's, self tuned. SOLD:06' LGT Wagon. BNR16G, Catless UP, DOWN, Hexmods VB, Hexmods diff bushings, BIG TMIC. Best 0-60: 4.651 by AP 1/4= 13.678@100.73 mph, 1.945 60', Automatic transmission. Link to comment Share on other sites More sharing options...
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