broke two LSD in two weeks. HELP!
#1
broke two LSD in two weeks. HELP!
Hello guys. Im here again with a big problem.
Last year I changed the AYC rear diff in my evo 4 for an Evo 9 rear diff.
I changed too my tcase for an Evo 5 tcase with LSD. (Evo 4 came with open diff in tcase).
The ratios its ok (3.312 in tcase and 3.308 in rear diff), for that no problem.
The car runs great and race very well in roll, until I made a launch three weeks ago and broke the LSD unit.
Its broke of the output to goes to gear box (picture attached).
After that, I think the LSD was bad because It never happen that before I change the tcase and rear diff.
I bought a new LSD and when I made the second launch its broke again.
Now, I dont know what can I do. Today I will take off the gear box to take a look but I want to know if I can have other suggestion of you.
BTW, my Evo its an Evo 4, with Evo 5 transfer case. Evo 9 rear diff.
The gear box its the original from Evo 4.
I made this sawp because a friend of mine has an Evo 5 with Evo 8 rear diff and the car runs great constantly in 10s seconds.
This is the first broke LSD
And this is the second one.
Last year I changed the AYC rear diff in my evo 4 for an Evo 9 rear diff.
I changed too my tcase for an Evo 5 tcase with LSD. (Evo 4 came with open diff in tcase).
The ratios its ok (3.312 in tcase and 3.308 in rear diff), for that no problem.
The car runs great and race very well in roll, until I made a launch three weeks ago and broke the LSD unit.
Its broke of the output to goes to gear box (picture attached).
After that, I think the LSD was bad because It never happen that before I change the tcase and rear diff.
I bought a new LSD and when I made the second launch its broke again.
Now, I dont know what can I do. Today I will take off the gear box to take a look but I want to know if I can have other suggestion of you.
BTW, my Evo its an Evo 4, with Evo 5 transfer case. Evo 9 rear diff.
The gear box its the original from Evo 4.
I made this sawp because a friend of mine has an Evo 5 with Evo 8 rear diff and the car runs great constantly in 10s seconds.
This is the first broke LSD
And this is the second one.
#2
EvoM Guru
iTrader: (1)
If those are stock LSD's, they are inherently weak. TRE does work to the to make them stronger though. Iy's likely with how quickly you're seeing failures that these already had cracks in them that you couldn't see. I would upgrade to a wavetrac and then you won't have to worry about it...
#3
If those are stock LSD's, they are inherently weak. TRE does work to the to make them stronger though. Iy's likely with how quickly you're seeing failures that these already had cracks in them that you couldn't see. I would upgrade to a wavetrac and then you won't have to worry about it...
But before that I use Evo 4 OEM ope diff and no problem.
Its better open diff? because I never cracked like this lsd´s.
#5
EvoM Guru
iTrader: (1)
These are failures are somewhat beyond a treatment. I think there is an underlying cause. Either far too aggressive on the launch, or these diffs were already cracked and waiting to go..
#7
The thing is, I dont know why in the first launch is broken. I belive you if cracked after to made like 5 drag races but in the first one?
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#11
EvoM Guru
iTrader: (1)
No, that's normal. That tube is splined into the driver side spider gear of the center diff, and is only held in place with a c-clip. They all wiggle around like that because they aren't part of the gear like the big outer shaft is.
#14
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Hello man, really? Are you sure that´s normal?
I dont know because I´m not a mechanic or an expert, so I´m ignorant in this area.
That sad because I think I found the problem. because center diff shaft in LSD output. (I hope you understand me because I'm not good at explaining this).
I dont know because I´m not a mechanic or an expert, so I´m ignorant in this area.
That sad because I think I found the problem. because center diff shaft in LSD output. (I hope you understand me because I'm not good at explaining this).
#15
EvoM Guru
iTrader: (1)
Yes, really, I'm sure that's normal.