Dane Wilson's 5 speed conversion info
Below is additional transmission
information that forum member Dane Wilson wrote up on his conversion of a
non-recommended W58 transmission for use with the HVDA kit. Dane found that by
changing the shift lever housing to a different part that the transmission fit
the HVDA kit with no problem. This was his experience but you're on your own
with regard to what HVDA recommends.
I have recently taken on the project of changing out
my TR-6 4 speed w/ A-type, to a Toyota W58 Transmission... I wanted to share
some experience with the community before you consider taking on such a project
and know beforehand what to look for and expect...
In truth there are about 8 different variations of this transmission with a few
of the more popular styles listed here:
As you can see there are several different placements of the shifter assembly.
When using Hermans (HVDA) conversion kit it is important you try to locate the
one closest to the left which is out af an 82-85 Toyota Cellica (Supra) with the
ma61 (Mk II) chassis... These are becoming incredibly rare and those that DO
exist in most cases have an excess of 150k+ miles on them. The more modern
versions will fit but require some alteration as you can see later in this post.
With the cover off you can clearly see what Toyota refers to as the [shift lever
housing] which is where the units vary over the years.
The red arrow is pointing to the correct Shift Lever Housing.
Another Pic showing Bob Danielson's
transmission with same red arrow.
Unfortunately I didn't know this information prior to picking up a W58 on
e-bay... My transmission was out of a 87 (Mk III) Supra...
My shifter assembly looks like this:
And with cover removed
the red arrow is pointing at a totally different shift lever housing. It
positions the shifter way too far back.
Here in lies the dilemma... Just to keep in mind everything else fits... the
bell housing connection, all the other supplied parts are ok... it is the Shift
lever housing that is the issue...
There are several solutions to this...
1. Adapt the transmission but use the toyota shifter components
Problem: Doing this sets back the shifter position about 2-3" requiring custom
interior work as well as the shifter being located in an uncomfortable position.
2. Get another transmission (sucks but it is a solution)
3. Fabricate (or cut/weld) the existing shift lever housing to the correct
Problem: This is a forged steel lever, you really need to make sure you do this
correctly or it could result in failure.
4. (What I am doing) Toyota can order the shift lever housing you need it is
Part number: 33502-14100. Unfortunately this little piece is $135 and you need
to remover the tail housing of the transmission so factor in another $30 for the
04331-20050 gasket set.
Transmission: $100 Ebay
Shipping: $100 from LA to NY
HVDA Transmission kit: $1767 (price is going up soon)
HVDA supplied LUK Clutch Pressure Plate: $107
Shipping from CA to NY: $66
Add on top of that the part I need $135 +$30(gaskets) you can see this is not a
cheap project. Especially when you do not factor in things like these extra
For those of you not familiar with or new to the community Bob Danielson's
Webpage should be bookmarked as it is so painstakingly detailed all the work he
has put into his car with great "tutorial" and "how to's"
A good link resource on how to take apart the transmission incase you need to
change or modify the part:
Complete Toyota W58 transmission service manual:
Complete Toyota Electronic Parts Catalog for W58 (MkIII Supra)
Feel free to ask if you have any questions or would like more info.
This is about 2 weeks worth of collective research
after finding out I had the wrong shift lever housing.
Installing the newer Shift Lever Housing (Toyota part number 33502-14100) was a
breeze and didn't even have to take the entire tail housing off... just slid it
back about 2-3 inches enough to swap the shift levers...
This allows people to use any W58 Supra Transmission up to 92'.
8-1/2" LUK #19-030
McLeod #36-98436 LUK
Clutch 8-1/2" x 1-1/8" spline & 21 splines organic
McLeod Clutch #270917