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Discussion Starter · #21 ·
Installing one gear won't help you, you need the set. I don't think this taller 5th driven gear will mate with the original 5th drive gear. The diameters will be different. I'll have my new 5th gear set in a week.
 

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Crazy OEM nut.
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hope you can see my facebook album


https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-prn2/t1.0-9/p417x417/1798541_10153948396065585_2099334389_n.jpg[\IMG]

thats the part your looking for cost me 100 bucks. gonna do this to the s54 in my celica in june. this is gonna be the better setup for just carting around and enjoying the drive. relatively short 1-4 and a taller 5th to cruise in

[URL=https://imageshack.com/i/nf3kgcp][IMG]http://imagizer.imageshack.us/v2/640x480q90/843/3kgc.png[/URL]
If it works the way shown there, that would be nice for freeway cruising. At 80mph, you drop from 4k rpm to 3500rpm, a not unsubstantial drop. :)
 

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Discussion Starter · #23 · (Edited)
I got my gear set yesterday... here are the details of it.

5th Gear - Drive
............... Camry ....... MR2
ID:.................1.26"..........1.26"
Syncro OD: .... 2.79" ........ 2.79"
Gear OD: ...... 3.545" ...... 3.365"
# of Teeth: ..... 41 ............ 39

5th Gear Driven
................ Camry ....... MR2
ID: ............... 0.96" ....... 0.96
Gear OD: ....... 2.655" ....... 2.825"
# of Teeth: ..... 30 ....... 32

I installed the new set and everything seems to fit well. I'll maybe have the car back on the road next week for some evaluation.
 

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Discussion Starter · #24 ·
i've had the car on the road for about a week now, i'm seeing the rpm match what is showing here for the new 5th gear set. drive-ability is good, no shifting issues or lack of passing power while on the freeway cruising in 5th.

I'll report out on the mileage after i burn through a few tanks of gas.
 

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S54 - Camry Longer 5th Gear Question

Reviving an old thread. I'm considering doing this gear swap on my 1991 NA w/ S54 gearbox. I read through multiple threads on the MR2 and Celica forums, looked through Paul Woods' TwoBrutal site, and did a lot of parts cross-referencing. Evidently the output shaft diameter changed for S54 trannys built after May 1990, so I'd like to make sure before ordering parts.

One BIG question - (hopefully Bob Hope can chime in here) - for those with early build S54 transmissions, will the 1991-1992 S51 gearset combination referenced in post #2 fit? My transmission (marked with S/N 01015873) indicates it was built in Oct. 1990, so it should have the larger diameter output shaft. Bob - do you know the build date for your transmission? Just trying to confirm that yours was built after May 1990 since your gear swap was successful :).

Also, it appears that:

1) The driven gear ( P/N 33428-32040 ) from an S51 appears to be applicable regardless of whether or not the S54 has the updated synchros.

2) The 5th gear part number from an S51 you'd need is different based on whether or not your S54 tranny has the upgraded (i.e., 1993+ S54) synchros.

3) The snap ring at the end of the 5th gear holding the syncros onto the shaft comes in different thicknesses - there are different part numbers so you can adjust to the required clearance. They are marked #10 through #27 in thicknesses ranging from 2.2 to 2.94 in increments of 0.05 (see http://toyota-europe.epc-data.com/corolla/ce100l/1601/chassis/3305/33393A)

So, if you have a 1991-1992 S54 tranny the following set should fit :
90-91 5th Gear 33036-32030
90-91 5th Gear (Driven) 33428-32040

If you have a 1993+ S54 tranny (with the upgraded synchros) the following set should fit :
5th Gear 33336-33020
5th Gear (Driven) 33428-32040

Measure the end clearance and get the appropriate snap ring to fit - they're pretty cheap (about $3).

Hope this helps.

Thanks,
Vincent
 

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Thanks a million Bob - this really helps.

It looks like together both 1991-1992 S51 gears are currently about $250 total from Lithia or Partznet. Not a bad price to keep the RPM and noise levels down a bit.

I'll post an update with results after I get this done (hopefully installed before Christmas).

Ciao,
Vincent
 

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Just to update this thread I just got my jdm 1991 s54 back from the transmission rebuilders. They said the 5th gears 33036-32030 and 33428-320-40 installed perfectly, no issues. They also put the quaife qdf21e in which also was perfect. Yet to install the engine back in the car but looks good so far. Pictures in my local build thread tw2's mr2 - the journey to a clean 2 - Page 17 - The MR2 Owner's Club of New Zealand
 

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Here are some pictures from my 93 S54. BTW, the nut is reverse thread.

It’s not hard to do even for someone who’s never delved into a transmission before.

The fifth gear swap can be done without removing the transmission.










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