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Manual to Auto conversion

20K views 25 replies 10 participants last post by  jcubillo  
#1 ·
Hi All!

I just recently purchased 1996 2dr Rav4 5 speed manual 2WD.

Want to do a automatic conversion, want to know what other things I would need to complete this successfully.

I know the following is needed, if not please correct me.

- Automatic Tranmission
- ECU
- Odometer
- Gear Box

Anything else?

Why? Well.. my gf is not a big fan of the manual.. (Currently learning)

Thanks!

Regards,
Peter
 
#2 ·
Get a new GF.... (best option)

If that's not practical, I'd seriously think about selling it and buying an auto, unless you're a pretty good mechanic and could handle potential harness issues, it'll be cheaper and certainly a lot easier.

To answer your question: I'm not sure, I'd compare the factory service manual wiring diagram and ECU pin out, see if there are differences for auto vs manual.. Generally speaking, there are significant differences on all of the post 1988.5 toyotas on auto vs manual.
 
#4 ·
HAHAH! Thanks for the suggestion for a new gf. Maybe what I really need is to convert her(gf) to manual.. (In progress)

Another question: If I wanted to convert this 2WD 2dr to 4 WD:

Would that be hard?

- Transfer case
- What else would I need? Tranmission?

(Can I get these from any Rav4 2dr or 4dr?)
 
#5 ·
To convert to AWD you would need:

AWD auto trans with t-case and speed sensors for the CDL.
rear diff and drive shaft
and possibly some other parts.

Overall I STRONGLY recommend you find yourself an Auto AWD because you looking into spending big $$$ for parts/labor and its never as easy as it sounds on paper.

EDIT: IIRC Driveshaft would have to be from a 2-door 4door had a longer wheelbase and would probably have a longer shaft.
 
#6 ·
You could also run 4WD manual. Would definately be easier and cheaper in my opinion. In addition to the transmission and transfer case you would need the rear from a 4WD (as the 2WD is hollow but makes an excellent route for the exhaust) and the shaft from a 2 dr to power the rears. Also, i'm not sure if it is required or not but would definately recommend the differential locking system unless that is integrated into the transfer case? Even if not going 4WD, keep it manual :D :D
 
#8 ·
just a thought, why not go with a rwd only platform? rav4's aren't really that great offroad vehicles anyways, and idk what u'll be using it for, but rwd more fun anyways, and i believe the swap would be easier. idk tho i'm no expert.
 
#9 ·
Peeta01 said:
Thanks for the info! I believe it will be 4WD manual conversion.

Has anyone successfully done this conversion? I couldn't find one from this site.
Doing it yourself? Don't ignore what I said about differing ECUs - wiring harness may be substantially different at the ECU as well as other places...
 
#10 ·
bgsymalone said:
just a thought, why not go with a rwd only platform? rav4's aren't really that great offroad vehicles anyways, and idk what u'll be using it for, but rwd more fun anyways, and i believe the swap would be easier. idk tho i'm no expert.
RWD would require you to longitudinally mount the engine,I don't think its as easy as 'drop the front drive shaft' and turn it into RWD :lol: . I also don't think the rear diff is made to handle 100% of the engine power either.

Anyways,unless you got a stack of 100's burning in your pocket listen to what me an cb1000 are saying and just get sell your manual for an auto 4WD. If you want to keep in manual and convert to 4WD you would still need a 4WD transmission with the CDL and all above parts.
 
#11 ·
Grimm_Reaper said:
bgsymalone said:
just a thought, why not go with a rwd only platform? rav4's aren't really that great offroad vehicles anyways, and idk what u'll be using it for, but rwd more fun anyways, and i believe the swap would be easier. idk tho i'm no expert.
RWD would require you to longitudinally mount the engine,I don't think its as easy as 'drop the front drive shaft' and turn it into RWD :lol: . I also don't think the rear diff is made to handle 100% of the engine power either.

Anyways,unless you got a stack of 100's burning in your pocket listen to what me an cb1000 are saying and just get sell your manual for an auto 4WD. If you want to keep in manual and convert to 4WD you would still need a 4WD transmission with the CDL and all above parts.
mebbe, idk if u have 1000's in your pocket rwd only, with a 2jgte. think about it ;")
 
#12 ·
Peeta01 said:
Hi All!

I just recently purchased 1996 2dr Rav4 5 speed manual 2WD.

- Automatic Tranmission
- ECU
- Odometer
- Gear Box

Anything else?
An auto flywheel, Automatic brake pedal, The Auto Transmission must or should be from the same year. It would be easier then mixing years and parts. Do these Auto Transmission have oil coolers? I think the odometer cable is the same just screw it on. Also you would need a RAV4 Auto shifter with all the extras that it has.

A place to do all this, decide if you are going to remove the entire engine with tranny or just the tranny. Removing the engine, is more problematic, but a lot better to work, install everything in an open space, then install all over again. :roll:

OR, have her help you so she can see how much you love her. :wink: Then she might decide to learn how to shift a 5 speed. :wink:
 
#15 ·
To convert to 4wd auto from 2wd standard and you wanted it to be plug and play you would need...

-main harness are different between auto/manual and 2wd/4wd (the number of doors doesn't matter to the harness #'s).

- 4wd auto box cheap to $$$

- 2door 4wd propeller shaft assembly there is a toyota # for the a 2door 4wd auto but there is no price $$ (special order?) or use use a 2door manual shaft with the front yoke off a auto

- rest of the 4wd drive train rear diff, rear cv shafts, rear hubs etc
cheap to $$$

- 4wd auto ecm cheap to $$$

- gauge cluster from auto displays ECT, O/D, gear selection and is your interface for trans diagnostics

- shift lever and all parts

? auto box mounts may be the same i don't know

It is very do-able if you can find a wrecked auto 4wd rav for cheap and have the time to do it yourself. if you have to pay labor or if you buy parts seperate then its going to be crazy expensive...
 
#16 ·
I don't believe we will be going to auto route anymore.

I would however like to convert my 2wd manual to 4wd manual.

Would anyone know if the front doors from a 4dr Rav4 is of the same dimensions as of the 2dr Rav4? or what parts from a 4dr Rav4 will be transferable to a 2dr rav4?

I see a wreck 4dr Rav 4, and would like to transfer some stuff over to my 2dr. Not sure if the 4dr Rav 4 is a 4WD, but it is manual.

Thanks!
 
#17 ·
An easy way to see if the 4 door rav is 4WD is to look on the dash just below the A/C button,if you see a button that looks like a car chassis,that is the CDL and its AWD.

Some parts that compatible with the 2 door would be lights (front and rears) bumper cover,most interior pieces. Doors will most likely not be interchangeable and neither will the door cards. The rear diff you could use but you would probably have to get a drive shaft from a 2door. That's probably just scratching the surface on what you could use from that 4 door....
 
#19 ·
Yea door panels...I visit many UK forums and there terminology is slightly different,its rubbing off on me :lol: :lol: . If you wanted to turn your crank windows into power ones,you could most likely use the electric motor and whatever other parts are related to it from the 4 door (wires,regulator etc...) but you cant use the panels from the 4 door because IIRC the doors are a different size. So you would have to locate door panels from a 2 door.
 
#22 ·
Peeta01 said:
Hey guys,

Sorry, to bring this back from the dead. But does anyone know why the clutch pedal is so stiff?

Update: She knows how to drive the 5 speed now. However, she doesn't like the rolling back when on a hill.
The only stiff oem clutch i'm aware of are nissans,none on other brands. is your clutch oem? anyway, if she rolls back, she's not stepping on the gas enough and/or she's not releasing the clutch much. A suggestion would be to practice with the e-brake engaged, step on the gas, release some clutch then gently pull down the e-brake as you go. once she gets the hang of it, she can skip the e-brake.
 
#23 ·
I'm also going to do a fwd to AWD conversion. not now... but in the near future. I will be using parts from celica alltrac cars since they are waaaaaay stronger than rav4s. I'ts not really an impossible job to do, but you need to source all the required components first and that is what takes the longest.

Someone talked about going RWD... well... don't. I also made some research on this and THAT is a crazy near impossible job to do. you would even have to change the engine so that it faces front-back instead of left-right as it is on our ravs.
 
#24 ·
Peeta01 said:
Hey guys,

Sorry, to bring this back from the dead. But does anyone know why the clutch pedal is so stiff?

Update: She knows how to drive the 5 speed now. However, she doesn't like the rolling back when on a hill.
She can use the hand E-brake as a third foot. It works very good if it is really steep hill or when the idiot in the car/truck behind you pulls up so close that you can't have any roll back or you'll hit them :evil:
 
#25 ·
jcubillo said:
Someone talked about going RWD... well... don't. I also made some research on this and THAT is a crazy near impossible job to do. you would even have to change the engine so that it faces front-back instead of left-right as it is on our ravs.
I don't think that converting to RWD would be that hard to do (assuming that you have a 4WD rav to start with). If the front diff and center diff where welded solid and the front axles where removed and their holes plugged so no oil leaks out, it would work as a RWD. If I'm not mistaken that is what they did to the evo's in Tokyo Drift.

I wonder how long a 4WD to RWD conversion by welding up the diffs would last?
 
#26 ·
^^^ I thought about that at first... but trust me... it's not quite that simple. You could do that to a transmission and it will work... for a while. They are simply not designed to be handled that way and it will be damaged after some time. In the toyota world, RWD conversions use a RWD transmission from supras if i'm not mistaken. But even then, you need to modify several pieces of it. Look for that conversion on the celica forums.