I know one guy who runs a gt40 and a crazy grabby *** clutch and I thought he would kill his diffs to but somehow amazingly they hold up he also said that either rnr or rmr runs the stock diffs on there rally cars so they must hold up.

 

Hi JT, here is something that might help:

 

Usdm tranny/transfer/diffs:

1. 4th gear
2. 3rd - 4th synchronizer
3. 3rd gear
4. Transmission case
5. Clutch housing
6. Clutch release bearing retainer
7. Input shaft
8. Output shaft
9. Front differential
10. Viscous coupling unit (VCU)
11. Transfer cover
12. Hypoid pinion
13. Center differential
14. 1st gear
15. 1st - 2nd synchronizer
16. 2nd gear
17. 5th gear
18. 5th - reverse synchronizer
19. Reverse gear
20. Reverse idler gear

 

Most dealerships will not warrenty your drivetrain if you have a different clutch. Techs claim it can rip out the drive train.

 

the front diff is in the transfer case, the center diff is in the transmission.

Martin

 

Thanks jemm & AMS... !!

So it seems like switch open front diff to EVO RS's front LSD would
be easier by just changing out the transfer case then?

Also, how do one know if the front diff is gone?
What are the known symptons?

TIA,

 

Marcus,

I have access on getting a transfer cases for Evo 4-7s. The Evo 8 is fairly new and parts are expensive. The Evo 7 CT9A is the same as the 8. How much are you willing to pay on double shipping from Japan. I get it delivered to me and I send it to you. Hopefully the item is not over 70 lbs or else I can't ship it. The items are used items. If you are interested, let me know and I will see the availabilities of the items.

One separate note to everyone, how easy is it to remove the transfer case from the gear box? I am having a hard time removing mine (Evo4). It seems to be caught on some thing and it does not easily slips out of the gear box. I did remove all six 17mm bolts and CV shafts. Help anyone?

Thanks,
Manny

 

Manny you will need a slide hammer to pull out the shaft from inside the transfer box and also the shaft from inside the gearbox. The shafts im talking about are the ones which your drive shafts go onto. Once you have removed them your transfer box will come off.

gary

 

ps manny can you get hold of s,h, E6 rs rear diff's ?

 

Please understand many parts can break during a launch.

It is possible to do damage thats spikes based on high engine RPM and shatter parts during a launch.

This is not because of the EVO. This is launching or heavy driving.

 

Guys, sorry i am a newbie....
my evo has this problem recently....3 ACD light up at the same time(happen once 2 days back) and return to normal after i restart my engine. now i encounter another problem after i turn my key to ignition(before i crank my engine), by right 3 ACD will light oni for around 1.5 seconds and return to normal state but now 3 lights lighted up together and stay there until i start my engine then only it return to normal state(e.g tarmac).

My transfer gone case?????

 

Heya, your AWD (ACD + AYC) Ecu is reporting a fault. Try this first...

1. Make sure you have not overfilled or underfilled your Transfer case with oil recently.

2. Disconnect the battery overnight to clear out the ecu.


If the 3 lights come on again..... take it to the dealer and have them connect the Mut-II diagnostic computer to your car... that will tell them where in the system the fault lies.

 

I swear - I nominate Jemm as my Evo guru

Thanks again for the info - helpful, as usual.

 

thanks Chris, but i have so much more to learn. These forums have help a great deal in this regard... evom.net rocks!

 

Thanks for the info. The rear diff, I will see if any available. Can you specify s,h,E6 rs rear diff's as Stock, ??, Evo6 RS rear diff? Not really sure. Also, where is your location? Shipping may be a snag.