2002 Toyota 4Runner 5sp swap

qwertyisdead

New member
Hey all. I've got an 02 4runner that blew the auto trans going up a hill. I dropped the pan and scooped a bunch of metal out so I figured I would go ahead and commit to dropping a manual in.

I am making a thread to just keep track of the process. It may or may not become informative or useful to others, but someone might find something helpful from it.

As of now, I have removed the auto trans, mounted pedals and drilled the firewall for the master cylinder.

My parts list so far is:

manual transmission from 200 tacoma
pedals
master/slave cylinder
driveshafts

Parts I need to order:
clutch/flywheel
??possibly starter if the auto is not compatible??
transmission xmember mount
output shaft seal

After Christmas I plan to order the remaining parts and put the manual in.

I have not figured out what I am going to do about the wiring but it seems there are some options. I am going to try to maintain the 02 transfer case, but I do have the j-shift from the 00 tacoma.

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Auto starter should work just fine. Also the cross member from auto should be fine. You’ll need a master cylinder line. eBay one for 93 Supra. Fits like a glove. I got it on mine. As far as wiring. You could trick the auto Ecu into neutral for mean time. But you’ll have check engine light. I don’t recall since it’s been long time. But 02 4runner should be plug and play with manual ecu. So I think a m/t ecu out of 2000 4runnee would be plug and play. I could be wrong. Again, been a while since something like this came up here.
 
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I managed to grab the lines which was nice. I’ve got them run, just need to bolt the trans up.

The auto X-member works, just need to get the manual mount.

As far as ecu, I was told 00-03 Tacoma ecu would hook right up.

I’m mostly concerned with how I’ll retain the 02 transfer case.
 
So I think a m/t ecu out of 2000 4runnee would be plug and play. I could be wrong. Again, been a while since something like this came up here.
He needs a Tacoma DBW MT ECU. From '01-'04 or something. I don't have the PN for that though, but a search should find it.

-Charlie
 
It seems to me that an ECU for a vehicle with a drive-by-wire throttle body - which to my knowledge is any 5VZ-FE 2001 and later - would differ significantly in its coding from an earlier my-foot-moves-the-throttle-plate engine.

And this is irrespective of whether the engine is mated to an automatic or a manual. Thus, the recommendation for a 2001 or later Tacoma ECU makes sense.
 
It seems to me that an ECU for a vehicle with a drive-by-wire throttle body - which to my knowledge is any 5VZ-FE 2001 and later - would differ significantly in its coding from an earlier my-foot-moves-the-throttle-plate engine.

And this is irrespective of whether the engine is mated to an automatic or a manual. Thus, the recommendation for a 2001 or later Tacoma ECU makes sense.

If you want to clear the check engine for CA emissions, you need a 2003 or 2004 MT Tacoma ECM. They are getting hard to find.

That's what I had to do on mine. Check out Tylers build he did a similar one to mine. I did not swap the wire harness. I just jumpered my AT harness and it worked just fine.
 
If you want to clear the check engine for CA emissions, you need a 2003 or 2004 MT Tacoma ECM. They are getting hard to find.

That's what I had to do on mine. Check out Tylers build he did a similar one to mine. I did not swap the wire harness. I just jumpered my AT harness and it worked just fine.

I'll give that a look. I just ordered the trans mount and output shaft seal. Just need to decide on what clutch/flywheel to go with. I'm ready to get it mounted up so I can start to tackle the wiring.
 
I'll give that a look. I just ordered the trans mount and output shaft seal. Just need to decide on what clutch/flywheel to go with. I'm ready to get it mounted up so I can start to tackle the wiring.

I used the LCE dual comp clutch kit.

It's a little aggressive for my driving style. Clutch is very "grabby"

The Marlin clutch wasn't available at the time.

I would go with on of those or the LCE Pro Clutch kit in retrospect.
 
I’m mostly concerned with how I’ll retain the 02 transfer case.

Your transfer case will mate up just fine with the M/T. You don’t need to do anything special with the wiring, just re-use your auto wiring harness and cap the A/T plugs that are no longer used. That’s exactly what I did on my ‘99 Limited, my multi-mode transfer case works just like it did with an A/T.

Also, just re-use your old driveshafts. The M/T is 1.25” shorter than the A/T, there is enough travel in the slip yoke on the front driveshaft to compress it that much and I just put a 1.25” driveshaft spacer from Low Range Offroad on the rear driveshaft.

Look at my build thread for more info.
 
I am going to have a bunch of parts left over from my swap. I am pretty sure I will have all the wiring harnesses and 5-speed ECU from a '99. I will also probably have the master and slave cylinders and possibly a crossmember and maybe more stuff.

I should know for sure after Christmas.
 
Update coming soon. Everything is pretty much buttoned up. Just waiting on some MT-90 to get here and need to wire up the neutral override.
 
Well I’ve been stumped for a day or so. Trying to get the dang NSS wired so I can start it up.

I can’t find the proper wiring diagram for an 02 anywhere.

I’ve got two plugs un used and I’m not sure which is which.

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Does anyone happen to know what wires to jump?


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Just a little update.

Got it figured out it runs and drives! Took it out to the swamp to test out 4wd and boy does it work good.

I’ll come back and update this post with the cost and everything that went in to the swap. It took 55 days start to finish and overall was a pretty good experience.

Just need to wire up the clutch cancel and cruise which will finish it off.
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Sent from my iPhone using Tapatalk
 
Just a little update.

Got it figured out it runs and drives! Took it out to the swamp to test out 4wd and boy does it work good.

I’ll come back and update this post with the cost and everything that went in to the swap. It took 55 days start to finish and overall was a pretty good experience.

Just need to wire up the clutch cancel and cruise which will finish it off.
b5d17a70a4b411ff7347311d21af8c90.jpg



Sent from my iPhone using Tapatalk

I'm doing this in the spring, do you have any tips and tricks or anything you can share that you would have done differently a second time around etc?
 
This is going to be a bigger post with most of the information I used to make this swap work. I have to give a lot of credit to the people who have done this before me as they made it MUCH easier. I pulled information from a bunch of different posts and I'll try to link to all of them here.

First I want to outline all of the parts that were necessary.

I happened to find 2000 Tacoma in the upstate of South Carolina with roughly 250k miles on it. From it I pulled -

  • r150f transmission
  • clutch
  • flywheel
  • master cylinder
  • slave cylinder
  • transfer case to front diff driveshaft
  • rear driveshaft
  • transfer case
  • pedals
  • shifters
  • clutch hard lines

Cost $300.00

It's important to mention that I forgot to pull the transmission mount off of the donor vehicle. Had I done that I wouldn't have had to buy one.

The Parts I had to buy - Total Cost: $500


3 Transmission bolts: 90180-11293
3 Long transmission bolts: 90119-12287
1 long starter bolt: 90105-10221

2002 transfer case bushing:
Marlin Crawler Toyota Shifter Seats - Red, White, Blue

Clutch Kit:
Marlin Crawler Toyota Shifter Seats - Red, White, Blue

Throwout Bearing:
Transmission Clutch Pilot Bearing, All Toyota Trucks Except 4.6L, 5.7L Tundra

Transmission Mount:
1995.5-2004 Toyota Tacoma | 1996-2002 4Runner | 1993-1998 T100 R150F Transmission Mount (12371-07020)

Shift Fork Dust Boot:
1995.5-2004 Toyota 3.4L 5VZFE V6 Clutch Fork Boot - R150F by Toyota (31126-34010)

Flywheel:
https://shop.advanceautoparts.com/p/carquest-new-flywheel-50-135/15260048-P

redline mt-90:
https://www.amazon.com/gp/product/B002INX20C/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

transfer case oil:
https://shop.advanceautoparts.com/p...l-synthetic-gear-oil-1-quart-vv975/10612910-P

transmission shifter bushing:
https://www.amazon.com/gp/product/B00NF1Q2QW/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1

The Grand Total for all parts was roughly $800.

Not too bad if you ask me.

Now for the how to of the swap. I'm going to go ahead an apologize now if I miss something.

In my mind, this is how I planned to approach the process. I didn't stray too far from it surprisingly.

1. Remove Front Seats
2. Remove Shifter
3. Remove flexplate
4. Remove transmission
5. mount flywheel/clutch
6. drill holes for master cylinder
7. mount pedals
8. mount vsc/abs ecu
9. Replace bushings / rear input shaft seal
10. Attach manual transmission
11. attach transfer case
12. wire NSS

The removal of the interior was pretty straight forward, nothing unexpected here. I wish I had documented this, but I just started unbolting stuff.

I removed basically the whole interior because I had planned to replace the carpet. To do the swap, you just need to remove the front seats, center console, and the panel under the steering wheel for easier access to the pedals.

From here it was time to get the auto trans out. The hardest part for me was the damn flex plate. It was pretty much a two person job.

To drop the auto transmission I had to remove the following:

  • starter
  • shifter
  • front and rear driveshaft
  • all transmission oil lines
  • transfer case

I had seen threads of people dropping the transmission with the transfer case but it was much easier to do it separately.

I had watched this video a couple of time to familiarize myself with the process: https://www.youtube.com/watch?v=oZDSjlxl2Q4

Jump to roughly 25 minutes in to see the how to drop the transfer case. Tim is the absolute man by the way.

Back to that flexplate. It was a two person job. I had a buddy spin the motor for me while I laid underneath the truck with a foot long 14mm ratchet to get the 6 bolts holding the flex plate to the torque convertor. There is not a lot of room to work down there and using a long ratchet is much easier than trying to cobble together a bunch of swivel sockets like I initially did.

Also - I bought these lights to stick to the underside of the truck.

https://www.amazon.com/gp/product/B07G9X19G1/ref=ppx_yo_dt_b_asin_title_o00_s02?ie=UTF8&psc=1

I can not express how handy they were. I dropped them in the oil drain pan several times, stepped on them and they have held up great.

Back to the transmission - With that flex plate unbolted, the transmission was ready to come. It was 6 bolts - 3 long and 3 short. I linked to them in the parts list. I had the worst time getting hold of them. I couldn't find the part numbers to save my life and the rep at my dealership was pretty much as unhelpful as he could be.

With the transmission out it looked like this.
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This was roughly the half way point for the job. This is when I turned my attention to the pedals and master cylinder mounting. I absolutely HATED this part of the job. There was not much room to work with underneath the steering wheel.

To start, I made a template on the firewall and used a 1 1/4" drill bit to punch out a hole for the Master Cylinder.

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From there I mounted the two new pedals. If you poke around under there you should see pretty easily what is going on.

You need to remove your factory brake pedal as it is to wide for the clutch pedal to fit. It's one spring and a long bolt that acts as a swivel.

Fitting the clutch pedal up there was a real pain in the ass and at least in my situation meant moving the vsc/abs ecu to a different location.

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This is looking up underneath the pedals with the foot kick panel installed. I snapped it back in place for fitment purposes.

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I had to trim the oem mounting tabs off of the ecu since they got in the way. I did keep one little tab so I could run a zip tie through it and a 10mm bolt hole on the brake pedal. Get that sucker tight so it doesn't rattle. In all the threads I read, I saw no mention of this so who knows if its the right way to do it. It worked for me though.

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With the pedals in and the master cylinder mounted I turned my attention back to the r150f install.

First I put a new throwout bearing in since the 5vz that had the a340f didn't have one in it (obviously).
I bolted up the flywheel and clutch. (I forgot to get a picture of the clutch mounted.

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I replaced the input shaft seal, sorry no pictures. This was straight forward, a seal puller and it was out in seconds. I didn't have one so a buddy did it for me. The install consisted of setting it in the hole and tapping it in with a block of wood. May or may not be proper but it worked.

I replaced the transfer case shift bushing because they were roached.

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While I was there I put new shifter bushings in. They didn't look as bad but it was worth doing.

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This is when I decided to go ahead and test fit the r150f up there. I did not have to remove the sway bar like some people were suggesting.

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What I did not know was not all the auto transmission bolts would work on the r150f. 3 of them were the correct length, but 3 were not. You can use your auto trans starter and 1 bolt, but will need an additional.

3 Short Transmission bolts: 90180-11293
3 Long Transmission bolts: 90119-12287
1 long starter bolt: 90105-10221

It was kind of difficult to get the transmission seated properly. I took me two tries to get it aligned. You'll feel it kind of pop in to place. I was roughly 1/4" from being flush to the block so that is when I started threading bolts in. I just tightened the bolts down going from side to side until it pulled itself together.

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With the transmission seated I wanted to see how the shifters were going to fit. You will need to cut the little cross member that separates the auto shifter and transfer case.

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Now for the transfer case. This is the part I was most excited about. It meant I was almost there. I also wanted to retain the original functionality. I did have a transmission jack but I couldn't get it to fit my jack. I ended up calling my good friend and we strong-armed the transfer case in to position. It was a real son of a ***** and in hindsight I would have just bought a different jack.

IT'S IMPORTANT TO NOTE: BOLT THE TRANSFER CASE TO THE TRANSMISSION BEFORE YOU ATTACH THE TRANSMISSION MOUNT.

If you bolt the mount up first you are going to have clearance issues when trying to thread the bottom bolts in. Odds are if you removed the transfer case, you'll encounter the same thing on removal.

Now you can bolt up the transmission mount and crossmember. You can use your factory crossmember.

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From here on out it was really straight forward. I've read a bunch of different things about driveshaft lengths and the need for a spacer.

This may just apply to 01-02 4runners retaining the factory transfer case, but I DID NOT have to replace or add a spacer to my rear drive shaft. I mated up perfectly, as did the front. Looking at the slip yoke, it doesn't look any different than when I removed it the first time.

I put the transfer case shifter in.

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Routed the automatic wiring harness back to a factory-ish location and plugged the transfer case back up.

I had drained both the trans/ transfer case so I had to refill them.

I used Redline MT-90 in the transmission seeing as most people said it was decent stuff. It took roughly 3qts. I filled until it came out the hole.

Same thing with the transfer case but I used valvoline 75w-90 since it was cheaper. It took like 1.25qts. Filled it till it ran out.

I caught hell bleeding the clutch. I spent about an hour pumping the clutch trying to bleed it before I got fed up.

Here is a little Tip: Bench bleed the master cylinder. fill it with some fluid and pump it up by hand to get any air out. cap off the side so it doesn't leak.
Same concept applies to the slave cylinder.

Once I bench bled it, I hooked up the factory lines (which I will be replacing with some stainless lines) and gravity bled the lines. I waited until fluid was running out the bottom lines to then hook it up to the slave cylinder.

With the clutch bled, it was pretty much time to tackle the wiring. There were three plugs that went unused from the auto transmission.

I haven't totally finished the wiring - still trying to get the clutch cancel and cruise sorted out.

This will at least get you going though. The plug you are looking for looks like this.

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I've been borrowing from this thread - It seems to be what I need.
Auto to 5 speed swap, need your input!

To get your vehicle to start, you have to trick your auto ecu in to thinking its in neutral/ start. To do that you need to jump the black and black-white wire. The proper way to do this would be to snip the wires and use a connector. I however opted to use a trigger spring.

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Anyways - It worked. Truck fired right up.

I've put about 100 miles on it so far with no hiccups. I did however need to tighten down the transmission mount. It wasn't as tight as it could have been. Multimode works great - engages while doing up to 55 mph. 4Lo is amazing. I can let off the clutch and it just pulls itself.

To celebrate my buddy and I went out for a stroll on his property.

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Great thread and great info [MENTION=203624]qwertyisdead[/MENTION]

I've always thought an auto was better for off-road (and heavy traffic), but a manual would be a lot more fun with the supercharger. I'm very underwhelmed with the auto in my supercharged 2002.

I gotta stay off this forum, too many ideas.

Curious what your plan is on the wiring/ecu? Gonna put in a different ECU from a manual or?
 
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