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-   -   Stock 4WD conversion (https://www.toyota-4runner.org/3rd-gen-t4rs/298105-stock-4wd-conversion.html)

02_SE_Runner_DAD 06-12-2021 02:25 PM

Stock 4WD conversion
 
For guys/gals that have done a stock 4wd conversion. How long will it take to do a stock 4wd conversion if you have two 4 runners side by side and taking parts from a 4wd and swapping them to a non 4wd?

TIA

phattyduck 06-14-2021 01:39 PM

It was 3-4 days of hard work and beer. Remember you need a welder for the crossmember and shifter holes.

Also, this is assuming no rust issues, etc.

Parts truck:
https://i.imgur.com/YlGrE80.jpg

Front in place:
https://i.imgur.com/w5PLyOH.jpg

Transmission going in:
https://i.imgur.com/CYgCicM.jpg

You can do various parts separately. The front diff/hubs/axles can be done separately. Then transmission, then wiring. Make sure you change the rear upper control arms when you do the transmission (2WD and 4WD upper arms are different).

-Charlie

02_SE_Runner_DAD 06-15-2021 10:23 PM

Thank you for that great info! What is the welder for? Does everything just bolts on to the 2wd? Really appreciate this info and thank you. I might have some more questions if you don't mind.

Bad Luck 06-16-2021 08:30 AM

Quote:

Originally Posted by 02_SE_Runner_DAD (Post 3647523)
Thank you for that great info! What is the welder for? Does everything just bolts on to the 2wd? Really appreciate this info and thank you. I might have some more questions if you don't mind.

You have to move the transmission crossmember location for the 4wd transmission mount to be able to bolt up to the frame. You'll also need to cut out, transfer, and weld the section of body around the transmission and transfer case shifters. The body opening for the transmission and transfer case shifter are different.

clearock 06-16-2021 10:22 AM

Quote:

Originally Posted by phattyduck (Post 3646933)
Make sure you change the rear upper control arms when you do the transmission (2WD and 4WD upper arms are different).

-Charlie

Hey phattyduck, just looking for clarification as to what is diff with the rear upper control arms?

phattyduck 06-16-2021 12:57 PM

Quote:

Originally Posted by clearock (Post 3647614)
Hey phattyduck, just looking for clarification as to what is diff with the rear upper control arms?

4WD upper arms are longer.

The 4WD pinion points up at the transfer case output (due to double cardan CV joint) and the 2WD pinion is level due to two single u-joints in the driveshaft.

-Charlie

phattyduck 06-16-2021 01:03 PM

Quote:

Originally Posted by 02_SE_Runner_DAD (Post 3647523)
Thank you for that great info! What is the welder for? Does everything just bolts on to the 2wd? Really appreciate this info and thank you. I might have some more questions if you don't mind.

As was already said:

Transmission crossmember has to be relocated (this pic is with the 2WD 4WD crossmembers in place while the 2WD trans was still installed):
https://i.imgur.com/npcygUl.jpg

Shifter holes (this is the 4WD holes traced out and the 2WD hole still there):
https://i.imgur.com/3c5XBqa.jpg

(this is the modified shifter area)
https://i.imgur.com/1oX5TxX.jpg

Check out the thread in in my signature for the whole story...

-Charlie

clearock 06-16-2021 01:26 PM

Quote:

Originally Posted by phattyduck (Post 3647670)
4WD upper arms are longer.

The 4WD pinion points up at the transfer case output (due to double cardan CV joint) and the 2WD pinion is level due to two single u-joints in the driveshaft.

-Charlie

nice, have done a couple of 2wd to 4wd and never realized said, makes complete sense when u stop and think... diff add this to my list in the future. Thanks

asianalpha 06-20-2021 10:27 AM

phatty.. how much the 4wd conversion cost you?

phattyduck 06-21-2021 02:17 PM

Quote:

Originally Posted by asianalpha (Post 3648692)
phatty.. how much the 4wd conversion cost you?

$300 for the rolled 4Runner with no motor, about $500 in maintenance parts (seals, fluids, broken part replacements, etc.) and about $500 in beer.

I highly suggest getting a parts truck to do it... There are a lot of little things you will miss if you don't have a complete 4WD next to you to compare. Make sure it is the same year and trim if you want the wiring to go smoothly...

-Charlie


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