It's almost time... but I need your help.

ChildrenOfBodom

Moderator
to start swapping.

I’ve probably spent about 5 hours today researching transmission and 4WD conversions. I’ve learned a lot, and I’ve got a few more questions until I’m ready to undergo phase #1, collecting parts.

I have a 1999 2.7 3RZ 2WD 4Runner, automatic. My latest gripe has been my transmission. There’s nothing wrong with it at all, I recently replaced my old transmission with one from a wrecked donor. I’ve got 33” tires, a supercharger, and a heavy foot. My slush box/grandma shifting auto just isn’t cutting it anymore. I need more power to make it to the ground, when I want. A manual swap would be the best solution instead of messing around with upgrading valve bodies.

Thanks to toritochis, who has provided a fantastic write up on a 2WD 3RZ Auto to manual swap, I’m ever more confident in the ability to do it on my own or with friends.
http://www.toyota-4runner.org/3rd-gen-t4rs/77065-2000-4runner-4cyl-auto-manual-transmision-swap.html
As you may know, the transmission in his situation is the W59 5-speed manual transmission available in the 1996-2000 2.7 4Runner and 1995.5-2004 2.7 Tacoma. This particular transmission is known to lack strength. With a supercharger that will soon be boosting 8-10PSI, I can’t afford to have a “lesser” transmission.

There are many solutions for swapping transmissions on the 3RZ. Marlin Crawler once made a bell housing specifically to mate the R series transmission (R150/R151 pre 96) that came with spacers to match the longer input shaft of the 96+ R150. My solution has come in the form of a 2006+ Tacoma 2TR 2.7 bell housing, which conveniently bolts to the back of the 3RZ in my truck to allow the installation of an R150 series manual transmission. Much like the Marlin crawler bell, mating the 3RZ to the 1996+ R150 using a 2TR bell does require spacers or input shaft shortening.
In a nutshell, the optimal swap for me will consist of a 2TR bell housing and an R150 manual 5-speed transmission, found in the 1996-2002 3rd gen 4Runner V6. The installation WILL NOT be 100% bolt on. I have checked multiple websites and read multiple conversions using these exact parts and have found that the 1996+ R150 input shaft length is too long for this application. I will then use the rest of the write up that toritochis has written to complete the mechanical portion of the install.

Here’s where I’ve been getting stuck at, the wiring. I have barely any experience with newer manual transmissions. I haven’t been able to find what else is required in the swapping of these transmissions. Each write up I've found completely skips it entirely, which leads me to believe that it should be a direct swap without wires. It makes sense if the manual ECU takes over... the ECT power, PRND2L, and other misc A/T related functions should just go dead, I'd imagine. I’ve also heard that my speedometer and tachometer will stop working. I do not have ABS in my truck from the factory. Without ABS sensors on each wheel, I am unaware as to how the speedometer is receiving signal.

Question:
1) If any 4Runner owners on this board, specifically 1996-2000 owners (1999 SR5 preferred), with 4WD, 5-Speed manual, LEVER operated 4WD, and 5VZ-FE (this narrows it down to specifically R150F owners, JohnsD90, steezemcqueen, Duhockey, etc..) could take a photo of their transmission -or- simply tell me what kind of wires are leading to it. I haven’t found a wiring FSM that was earlier than 2002, and that gets fudged by the fact that all 02 4Runners are Automatic, plus there were features like VSC, TRAC, AWD multimode transfer cases, ADD… etc. Without ABS is a far stretch, but if you don’t have ABS, that would be ideal. My trans has a bunch of wires going to it, but I figure there's potential of them all being automatic related.

2) With the 2TR bell housing, I won't have a problem getting the R150F to work. However, one thing poses an issue: 4WD. I have a 2WD, as mentioned, though I have planned on a 4WD conversion. I don’t want multimode or whatever fancy bull. The R150 3rd gen V6 trans comes in both 2WD (R150) and 4 wheel drive (R150F). My lack of transfer case experience has left me at a cliffhanger here, again. If I were to install an R150F 4WD transmission with transfer case into my truck, given the proper driveshaft length and transmission mount is already accounted for, will this work? I am under the impression so far that, yes, it should work. I should be able to use the transfer case in 4 Low without a front driveshaft, essentially making the truck into 2 Low (allowing the front output shaft or flange, not sure which our trucks have, to spin freely while allowing the rear wheels to spin without a center differential lock). Please correct me if I am wrong, but it appears that the transfer case does not have any wires running to it, that it is purely mechanical and works whether or not the car is running. Are my conclusions correct, or will I have to run in 2Hi until the rest of the components on the 4WD spectrum have been installed? The only other way I can think of is a separate harness that simply has all of the connections ready to go, though I haven't heard of anything like this specifically for this trans yet.

3) I do not have Anti lock brakes. I have read many times on this forum that the ABS speed sensors on each axle provide the speedometer with signal to operate. On a non ABS 4Runner, what provides the speedometer with this signal? I’ve googled and searched, to no avail. I’m hoping that if it is on the transmission, If I change my auto to a manual (especially one of the same vehicle/year), will I be able to literally swap the sensor over or just plug it on in? I would imagine that the V6 trans must have provisions for those who don't have ABS if the sensor is indeed mounted there.

Hopefully, If all of these questions are easily solved, I may be able to skip searching for 2.7 4x4’s and get a V6 4x4 donor for the rest of the swap (Easily a thousand times more abundant, much easier to find them at auction yards). After all, the only steps after the trans/transfer case go in will be finding a front diff/driveshaft, front axles, spindles, and whatever else misc... wiring (I believe my 4Runner is already prewired, as I have the 4WD module already and all of the 4WD-related fuses are hot)

Please tell me of anything else you know that I might encounter on the way so I don’t end up without my truck for a long time, haha.

To those of you who have taken the time to read this and/or reply, thank you.
 
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FWIW, the R151F transmission was found only in 86-87 trucks powered by the 22R-TE.

The trans you're probably thinking of, is the the R150F. It was in trucks and 4Runners behind the 3VZ-E, and the 5VZ-FE.

I only mention this so you end up with the trans you want.

Good luck with the swap.
 
If only you had posted this last weekend. I had my transmission out and sitting on the ground! I am going to be pulling the skids off again to install the 4xinnovations transmission mount in the near future. I will take some pictures for you then. And just FYI, the 5VZ-FE uses the R150F transmission and not the R151F.
 
ugh... i love your rig...but after a few beers that is way to much to read
hahaha, maybe tomorrow?

FWIW, the R151F transmission was found only in 86-87 trucks powered by the 22R-TE.

The trans you're probably thinking of, is the the R150F. It was in trucks and 4Runners behind the 3VZ-E, and the 5VZ-FE.

I only mention this so you end up with the trans you want.

Good luck with the swap.
My bad, been reading up on 5 separate R series transmissions lately and I screwed the numbers up when I was typing. I'll fix that. Thanks.

If only you had posted this last weekend. I had my transmission out and sitting on the ground! I am going to be pulling the skids off again to install the 4xinnovations transmission mount in the near future. I will take some pictures for you then. And just FYI, the 5VZ-FE uses the R150F transmission and not the R151F.

Nice, did you do the R&R yourself? Any kind of wires or sensors to worry about with 4WD R150s? When did my trans, there were a few sensors and plugs here and there. Don't know if they'll be able to plug in on the R150, hoping you can help me with that. Thanks, can't wait to see the photos when you do your mount install.
 
Nice, did you do the R&R yourself? Any kind of wires or sensors to worry about with 4WD R150s? When did my trans, there were a few sensors and plugs here and there. Don't know if they'll be able to plug in on the R150, hoping you can help me with that. Thanks, can't wait to see the photos when you do your mount install.

Yep i did it myself. it was just to do a clutch. From what i remember, the only connectors were for the reverse light switch and the 4wd indicator switch. i will confirm that when i do the mount.

You're going to love the manual!
 
Funny, my salvage auction searches have always been for 2.7 4x4's. Never found one until yesterday, right when I switched my search to 3.4 4x4's.

Haha, life.

Might be just as hard or harder to find a pre-01 3rd gen with 4WD, manual, no ABS... gonna search salvage yards for what I can get.

As far as the 4WD conversion aspect which will be further down the line, Aisin locking hubs from a Tacoma would be cool. Gotta find a 4.56 front diff and whatever.

Another question:
2TR bell + R150F... should I get a clutch for a V6 or still go for a 3RZ clutch? Will the fact that the bell is shaped for an RZ motor allow for a 5VZ clutch?

its going to be a performance clutch regardless, just want to know which to buy.


EDIT: Found my answer on CustomTacos.com, apparently I'm able to use the 3RZ clutch disc and pressure plate. Gotta find one with a lot of clamp pressure and hopefully a 400ish tq/hp rating (overkill is always nice).

Hmm... lightweight flywheel? Less torque... but less rotational mass makes me happy. Besides, I'll have a transfer case for torque now. Thoughts?
 
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Alright, so I priced out the huge list of parts and stuff... It's really not worth it if you're buying them separately.

I've decided that I am going to do the transmission swap as well as the 4WD swap, now.


I'm on the lookout for anything wrecked with what I need. None of the 4Runners on Copart.com in my area have anything right now.

I've got cash in hand ready for the wrecked truck of my dreams, haha, so I just need to find it. Do you have any suggestions as to where to look? Craigslist and eBay are dry from what I can find.

Thanks, that much closer. Hope that all I have to buy other than the wreck itself is a clutch and an ECU.

Can't wait, also gonna take sunroof/drains/wiring and the roof panel I wanted so I can do my sunroof swap, too. I have a big list.


Any leads are greatly appreciated. Local is best, but I'm open to any ads you guys send me. Please, and thank you! It's time to take my truck to the next level.
 
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I've decided that I am going to do the transmission swap as well as the 4WD swap, now.

Finally!! Let us know how much the swap runs you and how labor intensive it is. Basically all you need is a wrecked 2.7 with 4x4 manual and swap over parts and make some mounts for the manual tranny and new ecu and your pretty much good to go huh? So would you have needed a new ecu if you were just to add the 4x4 or that is to compensate for the manual transmission?
 
Finally!! Let us know how much the swap runs you and how labor intensive it is. Basically all you need is a wrecked 2.7 with 4x4 manual and swap over parts and make some mounts for the manual tranny and new ecu and your pretty much good to go huh? So would you have needed a new ecu if you were just to add the 4x4 or that is to compensate for the manual transmission?

I need a wrecked 5VZ 3.4 actually, because I want the manual from the V6 (strength). ECU is required for both tranny and 4WD conversions. A wreck should come with the mounts I need and everything, unless I might have to make a custom one. I am only worried about driveshaft length. Hopefully it's close enough that the slip yolk will compensate.


Thanks guys.

I was lucky enough to come across all of the wiring today on TTORA!

Turns out that I a 1999 3RZ M/T 4x4 ECU will plug right in. I have to run a few wires from the old auto harness to get neutral safety stuff working and a few other wires (piece of cake), and that's it!

Going to the junkyard tomorrow to find these parts:

2TR Bell Housing
1999 3RZ 4X4 M/T ECU

Still deciding which clutch and flywheel I want
 
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James you sir are crazy! Can't wait to see this unfold. When compleat you will for sure have one of the most labor intensive builds on the site. This kinda brings a whloe new meaning to, if you know what you want go get it! I will be keeping my eyes and ears open. There is a yota salvage yard in wilmington off of anaheim st. I can't think of the name but will be worth checking out. Good luck man!
 
I need a wrecked 5VZ 3.4 actually, because I want the manual from the V6 (strength). ECU is required for both tranny and 4WD conversions. A wreck should come with the mounts I need and everything, unless I might have to make a custom one. I am only worried about driveshaft length. Hopefully it's close enough that the slip yolk will compensate.


Thanks guys.

I was lucky enough to come across all of the wiring today on TTORA!

Turns out that I a 1999 3RZ M/T 4x4 ECU will plug right in. I have to run a few wires from the old auto harness to get neutral safety stuff working and a few other wires (piece of cake), and that's it!

Going to the junkyard tomorrow to find these parts:

2TR Bell Housing
1999 3RZ 4X4 M/T ECU

Still deciding which clutch and flywheel I want

Ahh gotcha. I knew ive always enjoyed checking your build. I keep thinking theres no way you can find more stuff to do... Then you do. haha
Ready for the updates keep up the great work man!
 

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