Ill paste this in from another thread, I was wondering are there any aftermarket upgrade parts to replace the weak OEM, or is OEM the best for my situation?

Well, today I started pulling it all apart.
here is what i found, looks like a torque tube that goes from the center diff to the transfer case shattered, cracking the TC cover, bearing race, outer torque tube, and wedged into the TC carrier. the end of the tube is still down in the center diff. tomorrow when i get to the shop ill check the spiders in the TC carrier.

pics...

 

Wow, Hairy launches. Sorry to see that man!

 

yep, went to the track for the first time in the Evo yesterday. did this on first run, didnt make it past the tree

 

how much power are you making?

 

I feel not that much. I ran some of my logs through the "virtual dyno" I found here on EvoM and it said 315hp and 280trq. Not enough for this to fail before the TC I felt.

 

What kind of clutch? What rpm did you launch at?

 

Exedy stage 2, HD pressure plate, and Exedy LW flywheel....... 5K, guess i came off the clutch too quick

 

I think it was a flaw in the material. I have 20+ 6.5k dumps at 9 psi on my red car and that never happened once. Running slicks and an Exedy triple, so all of the power went to the ground, no wheel spin. That is not normal, no matter how hard you dump the clutch. Wheel hop can break the spider gear, but that is very strange to see that go like that.

--mark

 

bummer, any suggestions on replacement parts? i was rather shocked this broke before the TC! but then again i havent opened the carrier just yet.

 

Give Jon at TRE a call, and see what he has in stock.

 

ahhhh, shockproof and a clutch drop strike again. that sucks man. maybe it was stressed from previous abuse. better off replacing the whole t-case as a unit. i mean, the housing is cracked. good luck man.

 

Spoke with John at Shep yesterday.... sent out the TC and center diff to him today. Should hear something in the next few days.

He mentioned they make an upgraded torque tube