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 Post subject: W40 - W50 Transmission swap RT104 Corona
PostPosted: Wed Sep 14, 2011 2:39 am 
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Joined: Sat Jun 14, 2008 7:26 pm
Posts: 208
Location: Australia
Hi All,

My Corona's gearbox is starting to suffer from clutch slip due to my own stupidity. Now the current PT combo is 18r-c/W40 and I would like to swap a W50 if I can whilst I do the clutch.

Now I've been researching online to see if this would be a straight swap but I haven't netted much concrete answers. I'm reading that they are basically the same dimensions/bellhousing/shaft output correct me if I'm wrong.

Questions:

Will an RA40 W50's shifter location line up to the W40 hole?

Is the W50 crossmember different from the W40?

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 Post subject: Re: W40 - W50 Transmission swap RT104 Corona
PostPosted: Wed Sep 14, 2011 2:43 pm 
JNC Enthusiast
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Joined: Tue Jun 10, 2008 11:26 am
Posts: 663
Location: Los Angeles, California
Given RA40 uses the same W50 as RA29, I am pretty sure W50 is little longer therefore shifter location be closer to e-brake.

My assessment is based on RA21 W40 converted to W50

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 Post subject: Re: W40 - W50 Transmission swap RT104 Corona
PostPosted: Wed Sep 14, 2011 6:29 pm 

Joined: Wed Sep 14, 2011 5:37 pm
Posts: 7
Yer man goes straight in. its the exact same except one has an extra gear on the inside. the w50 and w40 came out with different shifter locations. chances are they are the same if not use your w40 locator and put it on the w50. the one you want for the rt104 is the w50 with the rear most shifter location.

they are so much better


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 Post subject: Re: W40 - W50 Transmission swap RT104 Corona
PostPosted: Thu Oct 06, 2011 1:42 am 

Joined: Thu May 21, 2009 8:53 am
Posts: 21
Location: Nederland
I am also doing this swap for my cressida rx30. Where can i find a new cluth for my w50?


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 Post subject: Re: W40 - W50 Transmission swap RT104 Corona
PostPosted: Fri Dec 09, 2011 2:45 pm 
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Joined: Sat Jun 14, 2008 7:26 pm
Posts: 208
Location: Australia
Thanks to everyone I've asked to about this swap, your help is greatly appreciated.

Here's the gist of it for anyone interested:

RA28 W50 into RT104 w/ W40 18R-c

The good:
-Bellhousing fits perfectly
-Clutch slave cylinder is interchangeable
-speedo drive plugs in - although speed may be off, use a GPS to verify
-Reverse lamp switch plugs in, works fine
-input shaft lines up correctly
-clutch/flywheel/pressure plate interchangeable
-prop shaft fits with no mods
-W40 crossmember works with W50.
-Starter motor interchangeable.
-Light enough to bench transmission into place (although I wouldn't recommend this)
-Gear shift stick interchangeable.

The Bad:
- Shifter location housing is not interchangeable between W40 and W50
-Celica shifter location is further forward 2.5-3", but a small hole further forward is all that is required.
-Shift boot and locating screws need to be further forward
-W40 shifter is too far forward and you need to lean forward for 1,3,5

Verdict: Pretty much the same shift points as the W40, yet to test the top speed but should be higher (W40: 130-140 Kph, W50: ??) Good gearbox, much better on the highway.

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