Double cab manual transmission swap

TMFF · Mar 9, 2020

JasonLee said: ↑

Still doesn't answer my question. This PDF you linked (which I have) and the FSM don't show the ECM part/model numbers, so I can't just order one online knowing what the wiring/pinouts are.
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Sign up for TIS for a few days and start poping VIN's in to download the wiring diagrams.

https://techinfo.toyota.com/techInf...Oc%3d&TARGET=$SM$https://techinfo.toyota.com/

JasonLee · Mar 9, 2020

TMFF said: ↑

Sign up for TIS for a few days and start poping VIN's in to download the wiring diagrams.

https://techinfo.toyota.com/techInfoPortal/appmanager/t3/ti?_nfpb=true&_pageLabel=ti_home_page&SMENC=ISO-8859-1&SMLOCALE=US-EN&SMAUTHREASON=0&SMAGENTNAME=$SM$mT%2bGLraBu9CwUVnZg4mEDzB2kysT90hgbwsWgdZzNOc%3d&TARGET=$SM$https://techinfo.toyota.com/
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this is exactly the advice I am seeking. Now to start collecting VIN numbers from car-part.com ...

SafetyDang · Mar 10, 2020

What cross member is that?

jowybyo · Mar 10, 2020

JasonLee said: ↑

this is exactly the advice I am seeking. Now to start collecting VIN numbers from car-part.com ...
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You should try toyodiy.com first.

Running Board Man · Mar 10, 2020

jowybyo said: ↑

You should try toyodiy.com first.
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This website is awsome

GaryV-01DC · Apr 15, 2022

Hello all my 1st post here.

I have a 2001 Double Cab Trd 4wd that I am wanting to manual swap.

I have a complete 1999 Toyota Tacoma 4wd extended cab trd also with only 119xxx miles. (Rusted out frame) that I was wanting to use as a donor if I could.

Is it possible for me to use the engine, transmission and complete wiring harness along with the ECU out of the 99 into my 01?

jacobrippey · Apr 20, 2022

GaryV-01DC said: ↑

Hello all my 1st post here.

I have a 2001 Double Cab Trd 4wd that I am wanting to manual swap.

I have a complete 1999 Toyota Tacoma 4wd extended cab trd also with only 119xxx miles. (Rusted out frame) that I was wanting to use as a donor if I could.

Is it possible for me to use the engine, transmission and complete wiring harness along with the ECU out of the 99 into my 01?
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No. You can probably use the engine and transmission. Wiring harness and ECU will be different. Toyota in all of their infinite wisdom did a different pin out on just about every year Tacoma. The parts truck would also be good for the pedal assy, crossmembers (assuming that they're not rusted), clutch lines, master and slave cylinders.

GaryV-01DC · Apr 20, 2022

jacobrippey said: ↑

No. You can probably use the engine and transmission. Wiring harness and ECU will be different. Toyota in all of their infinite wisdom did a different pin out on just about every year Tacoma. The parts truck would also be good for the pedal assy, crossmembers (assuming that they're not rusted), clutch lines, master and slave cylinders.
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What if I were to use the 99's (engine/ transmission) wiring harness plus the harness from the dash (also from 99) and swap them into the 01 along with the manual transmission ecu from the 99?

I know that would be a lot more work but then I could carry everything over (clutch cancel switch, rear locker) including the gauge cluster

jacobrippey · Apr 20, 2022

You could, hypothetically do that. You'll also need to swap the door panels to the older design and swap out the internals. It would be much better IMO to find a harness and ECU for a 2001 V6 Manual. That way, you can maintain the updated door cards/dash design. The other thing I've seen is that folks use the same automatic harness and plug it in to the manual ECU (for the same year truck). I think a wire or two needs to be moved, and you'll want to cap off the un-used transmission plugs.

GaryV-01DC · Apr 20, 2022

jacobrippey said: ↑

You could, hypothetically do that. You'll also need to swap the door panels to the older design and swap out the internals. It would be much better IMO to find a harness and ECU for a 2001 V6 Manual. That way, you can maintain the updated door cards/dash design. The other thing I've seen is that folks use the same automatic harness and plug it in to the manual ECU (for the same year truck). I think a wire or two needs to be moved, and you'll want to cap off the un-used transmission plugs.
Click to expand...

I think I'm just going to look for a harness for an 01 and 01 ecu that away I pretty much just plug it in and maybe just have to unhook some wires that were auto specific going to the gauge cluster.

Thanks

idahohounds92 · Mar 16, 2025

2JHilux said: ↑

I don't think you don't need the ecu, I have run manuals off of the automatic ecu's on other toyotas. just have to wire up the clutch switch to the NSS on the automatic plug, or jumper it and be able to start car without pushing clutch in (that is how I wire all my cars and how toyota used to do it, my '85 Solid axle pickup never came with one). the manual ecu usually has a higher rev limit but otherwise should work. and you have to connect the reverse switch on the trans to the reverse wire on the auto plug.

You need the R150f transmission, you can reuse your auto transfer case (will need new shifter for correct angle), driveshaft modification or swap for right length (any local driveshaft shop can do it in a day for cheap), flywheel, clutch kit, inside shifter console for a manual, and install the clutch master cylinder to firewall (I did this in a few hours a couple months back not that hard).

Skip all the hard lines unless you have a donor truck, get the usual toyota metric to AN fitting online and use a simple 3AN stainless steel hose all the way from master to the slave.
the trans mount crossmember is in the same spot I want to say, you just need the manual trans mount. also not sure about the cut and welding, it is bolted on underneath there guys.

Its pretty straight forward removal of a transmission and reinstall of the manual transmission. and install the clutch pedal and the other stuff above.
I wouldn't pay anyone to do this as its a bunch of labor and time, but is is something you could do in a weekend if you have all the parts, or take your time over a few weekends.
If you have never pulled or installed a transmission before... maybe throw in another weekend lol.
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Could you post a link to the fitting and line you're talking about for the clutch line please?

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