12 replies to this topic

[walter]

Hi guys I have a w5M33-2-UPGE.....What transfer case shall I use and rear diff?

[doo doo]

Looks like you'll need an evo 3 transfer case  and evo 1-3 rear diff, as you have an evo 3 box.

Check here

http://www.4gtuner.c...s-diff-ratios/ 

[walter]

Looks like you'll need an evo 3 transfer case  and evo 1-3 rear diff, as you have an evo 3 box.

Check here

http://www.4gtuner.c...s-diff-ratios/ 

Do you know were can I purchase evo3 rear differential?

I already have the transfer case of an evo3

[Evo-00x]

Any EVO 1-3, 3.909 rear diff ratio centre (the entire guts inside the diff housing including crown and pinion) will be fine to put into your GSR diff housing if converting it to an EVO 3 drivetrain. You can still keep your existing GSR rear axles. Just don't get the EVO 1 GSR rear viscous LSD diff unless you get it complete with the cv cups and axles.

 

To save the hassle of swapping guts over and setting up tooth engagement and backlash professionally, you might be able to swap your GSR rear diff + $$$ for an EVO rear diff with an LSD in this forum as many guys with EVO's want to get rid of the 3.909 RDR and convert to GSR 3.545 RDR for lower rpm's at higher speeds on their street cars, or for longer legs in each gear on the track.

 

NOTE: The EVO owner will be losing his rear LSD in the swap. Although the LSD can take either the GSR or EVO crownwheel bolted onto it. It depends who wants the LSD. 

 

EBay Seller by the name of EC_JDM based in Newcastle might be a good person to ask for an EVO rear diff.

[Evo-00x]

East Coast JDM Imports in the Redhead (Newcastle) NSW area.

Website http://www.eastcoastjdmimports.net

Mobile: 0402 555 849

Ph: 02 4946 0387

 

Or if they don't have any, try Advanced Jap Autos in Sunshine West, Victoria

[walter]

I wilk send them both an email....thabks everyone for help :-)

[CLuTZ]

Shipping will be extreme to Malta. You might be better off scouring Yahoo and get it direct from Japan?

[walter]

any japan websites for purchasing the evo3 rear differential.....

[walter]

is it true what is saying this website about the ratios?

http://www.evo3.nl/i...i-specification

[Evo-00x]

Yes, but here is the actual breakdown of the tooth counts and ratios

 

EVO II-III CE9A:

NOTE: EVO III has slightly different transfer case and front diff ratio than EVO II TRANSMISSION

 

GEAR RATIOS INPUT/INTERMEDIATE :

1st - 12/33 = 2.750
2nd – 19/32 = 1.684
3rd  - 25/29 = 1.160
4th - 29/25 = 0.862

5th - 34/21 = 0.617

Reverse – 3.156

 

GEARBOX CODES EVO II

WPGE-GSR no LSD

WPWE-GSR with viscous front LSD

WPYE-RS no LSD

WPFE-RS with viscous front LSD

selector ring 92.9 input 97.2 int

EVO II Front Diff Crownwheel = 64 teeth

EVO II output shaft = 15 teeth

EVO II Front Diff Ratio = 64/15 = 4.266

EVO II Transfer case ratio (TR) = 24/22 = 1.09

Rear diff ratio (RDR) = 3.909 (43/11)

RDR x TR 1.090 (24/22) = 4.264 combined rear final drive
Total Final Drive (TFD) = 5.443

Primary ratio is 37/29 = 1.2758 (Centre diff and 3rd Intermediate)

Secondary ratio is 64/15 = 4.2666 (EVO I-II)

 

 

GEARBOX CODES EVO III

UPGE-GSR no LSD

UPWE-GSR with viscous front LSD

UPYE-RS no LSD

UPFE-RS with viscous front LSD
selector ring 92.9 input 97.2 int

EVO III Front Diff Crownwheel = 63 teeth
EVO III output shaft = 15 teeth

EVO III Front Diff Ratio = 63/15 = 4.200

EVO III Transfer case ratio (TR) = 29/27 = 1.074

Rear diff ratio (RDR) = 3.909 (43/11)

RDR x TR = 4.199 combined rear final drive.
Total Final Drive (TFD) = 5.358

Primary ratio is 37/29 = 1.2758 (Centre diff and 3rd Intermediate)

Secondary ratio is 63/15 = 4.200

 

NOTE: When all the ratios have been finalised, both the EVO II and EVO III use the 3.909 ratio Rear Diff. 

Edited by EVO-00X, 13 February 2016 - 12:15 AM.

[walter]

I will try to find an evo3 rear differential 3.909 to fit everything good :-)

[walter]

Hi guys I found the following 

 

http://www.ebay.co.u...IDX:IT#shpCntId

 

It will be good for me regarding the ratio and the fittment or shall I dismantle the pinion and spare gear to fit in the eclipse rear subframe?

[Evo-00x]

I PM'd you mate.