View Poll Results: Which Transfer Case are you on??
2003 EVO on 1st replacement T-case
55
75.34%
2003 EVO on 2nd replacement T-case
14
19.18%
2004 EVO on 1st replacement T-case
4
5.48%
2004 EVO on 2nd replacement T-case
0
0%
Voters: 73. You may not vote on this poll
Blown Transfer case Poll
Originally Posted by Grod101
Your statement is BS..... Some of the TC are not shimmed right that is why they go... I had my first one go at 2000K miles on my car with NO mods.... and again at 9000K miles it is leaking..... and they are replacing it again.... It has to do weather the thing was shimmed properly.... I know a guy that is on his 4th..... and some poeple that have almost 400whp and they have no problems......
It all has to due with the way it is assembled...
It all has to due with the way it is assembled...
Also, what hasn't stated here is HOW the TCs have failed. Are the teeth on the ring and pinion breaking? Are the bearings failing? If so, which one and how? Did the spider gears in the front diff break due to wheel hop? None of that information has been presented here.
What are the symptoms of improper bearing shimming anyway? I'd like to know. Do they usually fail from being shimmed too loosely or too tightly?
Last edited by marksae; Nov 6, 2004 at 08:03 AM.
Originally Posted by From RRE's Web site
The thing that most people break inside the transfer case is the spider gears in the front differential. Dude goes and practices his launches, gets some wheel hop and breaks the spider gears in the front differential. He goes to the dealership and they tell him he needs a new transfer case for $2k+. Thus the thinking that the transfer cases are weak. Some people have had trouble with the ring and pinion gears, but most trouble is with the front differential.
Mitsubishi had Getrag of Germany build the transfer case assembly for the EVO. This is normally a good thing since Getrag builds some nice stuff. But also Getrag has this thing about not selling service parts separate. Everyone always cries about this after the fact but how many of you axed about it before buying the car?
This front differential will give you better traction coming out of a corner, yes. But most importantly it will prevent you from busting up your stock weak front diff, or if you catch it right away allow you to salvage your transfer case assembly by replacing just the differential. You can buy this diff before or after you blow up your stocker. But you will buy it if you are going to have fun with your car
Mitsubishi had Getrag of Germany build the transfer case assembly for the EVO. This is normally a good thing since Getrag builds some nice stuff. But also Getrag has this thing about not selling service parts separate. Everyone always cries about this after the fact but how many of you axed about it before buying the car?
This front differential will give you better traction coming out of a corner, yes. But most importantly it will prevent you from busting up your stock weak front diff, or if you catch it right away allow you to salvage your transfer case assembly by replacing just the differential. You can buy this diff before or after you blow up your stocker. But you will buy it if you are going to have fun with your car
Complete page here
It might be interesting to see how many people have busted their transfer case after wheel hop? Is RRE's theory about the failures correct?
Quiafe anyone?
Newbie
Joined: Dec 2003
Posts: 78
Likes: 0
From: CO
When mine "went", it sounded like something was spinning eccentrically, rather than concentrically. Without having seen it apart yet (the TC comes in Wednesday), I would say that either it was shimmed too tightly, and not aligned properly, causing abnormal wear on one side and eventual eccentric spinning, or it was shimmed too loosely and has been spinning eccentrically for quite some time. I never heard a bang or clunk, just a hum/whine combo.
Thread Starter
Evolved Member
Joined: Oct 2003
Posts: 502
Likes: 0
Originally Posted by boostfed
you should add to the poll of who has the restrictor pill removed or not. that might have some effect on who's broken and who hasn't...
-Chad-
-Chad-
I just wanted to get a general idea of blown transfer cases. And possibly what to do to beef them up or prevent them from being destroyed....aside from the 6000rpm drop(gotta do it for 1.6s in the 60', right)?
You should do a quick clutch slip instead of a clutch drop to save your t-case. When you drop your clutch, you send a shock load down the driveline. The weak link will break first, which in our case is the front diff's spider gears. Modulating the clutch will take the load off your driveline.
Originally Posted by Gracing2000
I have the same exact problem, where can we buy this upgraded Front Diff. from Quaife?
http://www.roadraceengineering.com/evoquaifegb.htm
We should all complain at once to Mitsubishi and get them to pay for all our Transfer Cases.
Let me know if anyone has any ideas on how to blow this complaint up so Mitsu would recall these Transfer cases!!
Let me know if anyone has any ideas on how to blow this complaint up so Mitsu would recall these Transfer cases!!
Newbie
Joined: Dec 2003
Posts: 78
Likes: 0
From: CO
Originally Posted by Gracing2000
We should all complain at once to Mitsubishi and get them to pay for all our Transfer Cases.
Let me know if anyone has any ideas on how to blow this complaint up so Mitsu would recall these Transfer cases!!
Let me know if anyone has any ideas on how to blow this complaint up so Mitsu would recall these Transfer cases!!
wont recall the transfer case ever, because it is not a safety issue and because not everyone's TC has this problem. The best they will ever do is cover it under warranty when it breaks for each individual, and that's more than I can say for our clutches!!!
Evolved Member
iTrader: (2)
Joined: Apr 2004
Posts: 875
Likes: 0
From: Port Saint Lucie, FL (South FL)
I blew mine yesterday. 500 miles after twin disk clutch install. Can someone please tell me the symptoms of a xfer case breaking (just want to compare). Aslo Should I be driving the car at all?
we called a local shop to ask them about doing a clutch install, because we knew they installed an exedy twin disk in a friend of ours evo... while on the phone the guy told us that that particular evo was back in the shop, getting its FOURTH transfer case installed!!! i knew about the first 2 but i didn't realize theyve gone through 2 more now... they don't have anything too crazy as far as mods... vishnu stage 1 i believe.. anyways i am about to buy a new clutch myself... gonna stick with a single disk for my needs 
Thread Starter
Evolved Member
Joined: Oct 2003
Posts: 502
Likes: 0
Originally Posted by reefro
we called a local shop to ask them about doing a clutch install, because we knew they installed an exedy twin disk in a friend of ours evo... while on the phone the guy told us that that particular evo was back in the shop, getting its FOURTH transfer case installed!!! i knew about the first 2 but i didn't realize theyve gone through 2 more now... they don't have anything too crazy as far as mods... vishnu stage 1 i believe.. anyways i am about to buy a new clutch myself... gonna stick with a single disk for my needs
4th transfer case? Were they all covered under warranty? At $2000+ a pop, you might want to get another car.
Originally Posted by platinumspecv
So single disk wouldnt cause xfer cases to blwo?????? interesting
and none of them were covered under warranty.. its possible its only the 3rd and the guy on the phone was wrong... but its at *least* the 3rd because i know theyve replaced at least two, and now its in the shop again