- Feb 17, 2003
Will the evo 3 tranny and rear diff work in a 2g ?
You have to swap the front diff ring gear from a 2g to use it with 2g transfer case and rear diff. Or get Evo 3 transmission and a transfer case and swap out the 2g rear diff ring gear with the evo 3 one.
Other than that the mounting brackets are the same.
If you're going Evo 3 transmission, just take the extra expense to go with the Evo 3 TC and add in the entire Evo 3 rear diff. Someone else can confirm or deny, but I believe they're a better LSD rear than our DSM units are. I don't THINK they're as good as the Evo 4-9 clutch style LSD that people are loving, but they're better than our viscous units.
Lots of misinformation in this thread.
The Evo 1-3 transmission will work if you have the matching Evo transfer case and 3.909 rear diff. It will bolt up just fine to a 2g, using 2g AWD clutch and flywheel. The rear diff from the Evo 1-3 is the same clutch-type diff as the 4-9 non-AYC clutch-type diff (with the exception of the Evo 1 GSR, which got the lame viscous rear diff). Transmissions are getting extremely rare, E3 especially (though I would give up the E3's double synchro gears for the E1's better ratios and stronger shift forks). The DSM might be able to use the shorter E3 gearing due to the increased weight. On rare occasions, early Evos get parted out here in Canada, but transmissions almost always have something wrong with them, and they go quick and for big bucks. There's really no cheap and good way of doing it. Your best bet is to call a JDM parts importer and open your wallet, but be sure you run the part numbers on the trans to make sure you're not buying something from a Galant or RVR. Bonus points if you get the rare optional front LSD.
The 2 stuff is good, go with it if you found it. The only advantage the 3 has over the 2 is the synchros, not worth waiting for. Pick your axles carefully and you're good to go.
The thread "Let's talk diffs" in Road Race/AutoX has everything you need to know about rear axles. For the front axles, use stock axles unless you do have the front viscous LSD, then you'll need the super rare LSD-specific axle joint to go with it. If the seller doesn't have it, send me a message and I'll consider parting with my extra LSD axle.
still lots of misinformation in this thread. even from the guy in canada. evo 2 trans is same as evo 3. and evo 1-3 diff is not direct fit into 2g. all the 4g63 rear ends are different. here are the ones I have had here and what I can tell you about them. interior dimensions of housings are all the same. so you can switch ring and pinion or lsd setups from any of them. however the exterior housings and how the mounts mount are all different. non of them interchange.
all use a different way to mount the diff in front. rear housings use same 2-3 bolt pattern. so externally the housings are different.
so to install and run evo 1-3 trans in 2g you need to use 3.9 ring and pinion installed in the 2g diff.
evo 1 trans uses 1.090 transfer
evo2/3 uses 1.074 transfer
95/96 2g uses 1.090
98/99 2g uses 1.074