6G Celicas Forums

Group buy for Narrow E Series gearbox conversion parts. The S54-06D transaxle that came on beams engines is nearly difficult to rebuild, as internal parts are hard to come by. However there is a solution for those who wish to keep their celicas for a few more decades. Upgrade to the Rav4 E352F/Scion TC E350 internal gears with 96-2000 Rav4 E250 transaxle casing. A combo of 2 different transaxles is needed for better gearing (not optimal)

The shifter cables you need are 94-97 7afe or the 94-99 3sgte, The gearbox mounts and transaxle brackets are the same between E56 equipped ST202 celica and ST205 Celica with some minor differences.
Finding all these parts were difficult and took me nearly a year and half to accumulate. The axles are the hardest to find. 3D scanning will be needed to replicate the exact design (similar to what MR2 Heaven has been doing)

E56 Gearbox Mounts by Justin Towers, on Flickr

E56 Gearbox brackets by Justin Towers, on Flickr

E56 CV Axles by Justin Towers, on Flickr

This post has been edited by BonzaiCelica: Nov 10, 2023 - 4:26 PM

this is where i bough my axles. i believe he still has one set left. email him to be sure. he responds quickly.

http://www.gt4-racing.eu/produkt/celica-t2...nt-axle-shafts/

here is the video explaining all the details

https://youtu.be/kb3F5238fco

1st and 2nd drive gears are casted to input shaft. Pinion Gear is cast to output shaft.
Use Mass Damper from E35# onto E250 transaxle casing

E56,E154F and E250 share same speed sensor

E154F transaxle Speedo Drive Gear (33403-29495) only in Japan
E56/E153 (SW20L) transaxle speed drive gear (33481-12100)
E350 transaxle speed drive gear (33481-28050)

ST205 Celica 215/50R16 (24.46in)
Celica 205/55R15 (23.88in)
Scion TC 215/45R17 (24.7in)
Custom Set up 235/40R17 (24.4in). This is widest tire you can run

3.538 ratio outputs max speed of 34pmh
3.214 ratio outputs max speed of 37mph (less torque to wheels and prevents wheel slippage)
3.070 ratio outputs max speed of 39mph

This post has been edited by BonzaiCelica: Nov 20, 2024 - 11:24 AM

update. turns out the sw20 axle carrier bracket will work. found a rav4 at the yard and pulled the bracket off, looked at part # and it was from an sw20 turbo mr2. these are available new from primemr2. toyota lists diff part # because it comes with a stud from factory that has 2 stabilizer bars attached to it. despite the pass axle E153 having a different bearing part number vs rav4/celica, i confirmed that it fits my E56 axle.

This post has been edited by BonzaiCelica: Nov 30, 2023 - 12:46 PM

bump

bump added notation in description and comment section of the youtube video.