FS: Group Buy for Narrow E Series Transaxle, replicate oem parts to upgrade your drivetrain Options

[BonzaiCelica]

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. However I will probably make custom gear shift cables as oem used ones start to fray out and become on the plastic that insulates the metal weaved strands of wire.
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 (or can be designed from scratch in any CAD program) 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: Jul 17, 2025 - 1:28 PM

[BonzaiCelica]

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
3.070 ratio outputs max speed of 39mph (least amount of torque to wheels and prevents wheel slippage)

This post has been edited by BonzaiCelica: Jul 17, 2025 - 1:25 PM