1st gen tundra 4WD swap

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California
Hi, I have a RWD 5MT 04 tundra and am looking to start 4WD swapping it soon, just kinda making a post compiling info and looking for any verification or opinions from anyone who is looking to follow

Transfercase

  1. 2000 - 2006 Tundra 6cyl auto or manual
  2. 1996 - 2002 4runner 4cyl 6cyl auto or manual
  3. 1995 - 2004 Tacoma 4cyl 6cyl auto or manual
Front Differential

  1. 2000 - 2006 Tundra 6cyl 8cyl auto or manual
  2. 1996 - 2002 4runner 4cyl 6 cyl auto or manual
  3. 1995 - 2004 Tacoma 4cyl 6cyl auto or manual
  4. 2001 - 2007 Sequoia (maybe)
Rear Differential

  1. 2000 - 2008 Tundra 6cyl 8cyl match ratio
  2. 2001 - 2007 Sequoia (maybe)
Transfercase Adapter

  1. 2000 - 2006 Tundra 6cyl manual
  2. 1996 - 2002 4runner 4cyl 6cyl manual
  3. 1995 - 2004 Tacoma 4cyl 6cyl manual
from what I read the tacoma/4runner rear diff (and locker) cant be swapped in (altho toyota's parts website list same part number for first gen tacoma, 4runner and tundra rear carrier)



one thing I'm having a hard time with is the driveshaft, toyota lists parts as unique to manual 4WD, even though the transfercase is the same between auto and manual, so I'm assuming its all in lengths, not sure if auto is longer or shorter

According to dorman, reman driveshafts:

the auto rear is 71.5 inches manual rear is 72.875
the auto front is 26.93 and the manual front is 25.85

the other issue is the transfercase adapter, it too is unique to the manuals, thankfully its the same between multiple models, but they are rare options for manual AND 4wd. and the part number doesnt match for older toyotas and R150's sadly
I am eyeing 4WD manual 2.7 tacomas, but I cant get the part numbers to match for the shifter collar/linkage


my hope is to leave the trans in the car, change out the tail housing for the transfercase and adapter, and then add the front diff and driveshafts, does anyone know if this is possible without dropping the trans, even on the junkyard truck?
or should I just buy a new JDM R150F?
I would love to swap in the 6 speed instead, but I plan on going V8 later on, and I dont think they make a bellhousing or adapter for the 6 speed?

it seems like I can use my hubs and just press in some new koyo bearings and hubs, I wanted to use the newer bolt in style, but again toyota has different part numbers for upper and lower control arms, so im not going to mess with that

I'm hoping to use a Sequoia rear Diff 4.10 and use a 3rd gen 4runner non locker auto front diff


auto and manual cv axles are the same, not sure if I need a different transmission crossmember or not, there seems to be a hole in the floorpan to fit the 4wd shifter, not sure what to do about the plate that goes through there



not sure if I am going to need to wire anything up, as far as a 4WD light, or cluster swap (I still dont have a tach lol)

I have tried my best to verify compatibility, on toyota parts websites as well as visual confirmation in ebay listings, junkyards...ect

I do wish I could fit a locker in there, but not into buying an aftermarket option
 
Compare that to your energy/time/cost of swapping just to end up with a heavy half ass 4x4 with an underpowered v6…

Manual is overrated. You’ll need the v8 with that extra weight. If you value your time, buying one WAY is cheaper.
 
Compare that to your energy/time/cost of swapping just to end up with a heavy half ass 4x4 with a v6.

Manual is overrated. You’ll need the v8 with that extra weight. If you value your time, buying one is cheaper. High mileage v8s are cheap and the 4.7 is a million mile motor.

And trust an old man who has been around the block… your frankenstein rig will likely be worth LESS than if you just sold it now to offset the cost.
 
I do plan on eventually swapping in a v8, I mentioned that in the post


I dont care if you feel manual is overrated, 8 of my 9 cars right now are manual

and I test drove an auto before I test drove a manual and I prefer the manual easily

my plan is to ultimately have a V8 4x4 Manual, and it will possibly be the 3UZ instead
 
I do plan on eventually swapping in a v8, I mentioned that in the post


I dont care if you feel manual is overrated, 8 of my 9 cars right now are manual

and I test drove an auto before I test drove a manual and I prefer the manual easily

my plan is to ultimately have a V8 4x4 Manual, and it will possibly be the 3UZ instead


- first things first here :

- if this is you pipe - dream follow it to the letter and completion 100% 🍻 :)

- i think this is KILLER KOOL idea , and having a MTM 1st gen 4wd TUNDRA will be something unique and something wikid this way comes absolutely ! :D

- i have ALL FSM 's in print media if you need any screen shots of the paper pages here , ill help you if i can don't hesitate to ask , i have some MTM FSM's also too , and the BIG phone book ones also as well ,



- im subscribed , here because i like new , different and unique ideas that break glass ceilings and chart new paths ,

- do not be discouraged into NOT doing this , that would be a poor choice , ...........

- and your 100% correct , pre-owned 1st gen 4wd tundra's command top $ on Craig's list and kelly blue book used cars classifieds , i had 3 1st gen tundras till 2 months ago and i sold 1 of them to buy my new to me FJ62 , here is a SOLID Fact : 2004 TUNDRA Access cab 4.7 4WD 109K No issues / all records , i owned her for 9 solid years , i sold her state inspected , for $12, 400 my full asking price in less then 5 Business days , i had dudes and 1 lady fighting over it inperson , and was actually offered 500$ more then my asking price by a prospective buyer after i had made a hand shake deal and taken a simple 1000$ cash deposit , did i aceept the bribe and screw over the 1st buyer for full asking price ?

HELL NO , that's not moral and im not a greedy person either m i was simply happy and that's good enough for me ....


so , yes i think your conversion makes Finanicial sense , if ONLY you add the 4.7 at the same time , is only my 2 cents , either way , ROCK ON and know folks like me fully support your snappy idea here you outline above in greats details .......



kindly matt

- here is SUPER HILUX 's Build thread link : :cool:











- go to my build thread here in this forum , u can see i have some CIRCUS CLOWN's come and talk smack about my Sema Spec. Concept Visionary SUPER HILUX build i have going on ......

- F them !

- i am following my charted path into the wild and new unknown , i would give anything to have a MTM 5 or 6speed in SUPER HILUX , maybe after observing and supporting your endeavor i will have the confidence to do just that .........
 
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Compare that to your energy/time/cost of swapping just to end up with a heavy half ass 4x4 with a v6.

Manual is overrated. You’ll need the v8 with that extra weight. If you value your time, buying one is cheaper. High mileage v8s are cheap and the 4.7 is a million mile motor.

And trust an old man who has been around the block… your frankenstein rig will likely be worth LESS than if you just sold it now to offset the cost.


knock it off pop's .........



- negative vibes about one persons pipe dream are simply so very Passe' :confused:
 
Hi, I have a RWD 5MT 04 tundra and am looking to start 4WD swapping it soon, just kinda making a post compiling info and looking for any verification or opinions from anyone who is looking to follow

Transfercase

  1. 2000 - 2006 Tundra 6cyl auto or manual
  2. 1996 - 2002 4runner 4cyl 6cyl auto or manual
  3. 1995 - 2004 Tacoma 4cyl 6cyl auto or manual
Front Differential

  1. 2000 - 2006 Tundra 6cyl 8cyl auto or manual
  2. 1996 - 2002 4runner 4cyl 6 cyl auto or manual
  3. 1995 - 2004 Tacoma 4cyl 6cyl auto or manual
  4. 2001 - 2007 Sequoia (maybe)
Rear Differential

  1. 2000 - 2008 Tundra 6cyl 8cyl match ratio
  2. 2001 - 2007 Sequoia (maybe)
Transfercase Adapter

  1. 2000 - 2006 Tundra 6cyl manual
  2. 1996 - 2002 4runner 4cyl 6cyl manual
  3. 1995 - 2004 Tacoma 4cyl 6cyl manual
from what I read the tacoma/4runner rear diff (and locker) cant be swapped in (altho toyota's parts website list same part number for first gen tacoma, 4runner and tundra rear carrier)



one thing I'm having a hard time with is the driveshaft, toyota lists parts as unique to manual 4WD, even though the transfercase is the same between auto and manual, so I'm assuming its all in lengths, not sure if auto is longer or shorter

According to dorman, reman driveshafts:

the auto rear is 71.5 inches manual rear is 72.875
the auto front is 26.93 and the manual front is 25.85

the other issue is the transfercase adapter, it too is unique to the manuals, thankfully its the same between multiple models, but they are rare options for manual AND 4wd. and the part number doesnt match for older toyotas and R150's sadly
I am eyeing 4WD manual 2.7 tacomas, but I cant get the part numbers to match for the shifter collar/linkage


my hope is to leave the trans in the car, change out the tail housing for the transfercase and adapter, and then add the front diff and driveshafts, does anyone know if this is possible without dropping the trans, even on the junkyard truck?
or should I just buy a new JDM R150F?
I would love to swap in the 6 speed instead, but I plan on going V8 later on, and I dont think they make a bellhousing or adapter for the 6 speed?

it seems like I can use my hubs and just press in some new koyo bearings and hubs, I wanted to use the newer bolt in style, but again toyota has different part numbers for upper and lower control arms, so im not going to mess with that

I'm hoping to use a Sequoia rear Diff 4.10 and use a 3rd gen 4runner non locker auto front diff


auto and manual cv axles are the same, not sure if I need a different transmission crossmember or not, there seems to be a hole in the floorpan to fit the 4wd shifter, not sure what to do about the plate that goes through there



not sure if I am going to need to wire anything up, as far as a 4WD light, or cluster swap (I still dont have a tach lol)

I have tried my best to verify compatibility, on toyota parts websites as well as visual confirmation in ebay listings, junkyards...ect

I do wish I could fit a locker in there, but not into buying an aftermarket option


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2462A675-4295-465A-865D-72914428E323.webp
 
so , yes i think your conversion makes Finanicial sense , if ONLY you add the 4.7 at the same time , is only my 2 cents , either way , ROCK ON and know folks like me fully support your snappy idea here you outline above in greats details .......



kindly matt
yes, thank you, I am building this for function over resale value, and ultimately what I want is a Manual V8 4WD truck, and initially I was going to do it to a hilux/4runner, but the tundra 100% is a better platform for it
 
What motor is in your truck right now to begin with? --the 5vz V6? The 1G Tundra drivetrain is veeeerrrry similar to the 1G Tacoma (and 3G 4Runner). Especially as far as the motor-trans-tcase is concerned. There's TONS of info on 4x4 conversions out there on tacomaworld and ttora. I converted my 2001 Tacoma Prerunner to 4x4 back in 2013 and was also told at that time to "just sell and buy a 4x4" which was completely stupid cause woulda cost me $7k+ at that time and I did my 4x4 swap for under $1000.... The 4x4 swap on the first gen Tundra and Tacoma is stupid easy. Its all just bolt right on.

Anyway, for the trans and cases etc etc. Easiest way to bolt onto your existing manual trans is find a 1G Tacoma or 3G 4runner case from behind the same motor and trans So if 3.4 and manual, you want the case and case housing/trans tail housing from the same 3.4 and manual trans. Cause then it just bolts right up. Well, sort of... Cause the non-4x4 transmissions have a different output shaft than the 4x4 versioned ones, so you have to swap out the output shaft as well. Or (what i did on my Tacoma) just swap complete trans+case on the truck in place of the 2wd trans.

The Tacoma/4Runner elocker diff will def NOT fit in the rear Tundra axle housing--different bolt patterns and size. (However, the non-elocker 1G Tacoma rear diff is the same as the 1G Tundra rear diff.) Front diffs are all the same between the 1G Tundra, 1G Sequoia, 1G Tacoma, and 3G 4Runner (other than the different gearing of course). Though the diff side-tube varies between manual hubs and ADD hubs and some ADD side-tubes use vacuum actuated motors and others have electric actuated motors.

Don't know driveshaft lengths, but again easiest way there is grab driveshafts from a wrecked truck that had the setup you want. So a 1G Tundra with the 3.4/manual/tcase. The caveat there is that it must be like-for-like and there were a handful of different transfer cases that came in the Tacoma/4Runner, so if you use a case from one of those (like say the J-shift case) then you may not find "bolt in" shafts from another 1G Tundra cause I'm pretty sure those never got a j-shift case. So resizing/getting new driveshafts may be the only way to go there.

For trans mount and cross member, you will need the one again from the similar versioned Tundra (3.4/manual/case)

Not sure about the 6 speed behind the V8. Seems I've seen talk on it out there on the wild nets. Tacoma world or t4r.org or on here maybe even. Def talk on putting the non-US LC 5-speed manual behind the V8. There's a good thread here on mud on that. But that would be a good bit different from just bolting stuff up if thats what you're trying to do.

Good luck. Wading thru all the crap info out there is prob the hardest part. And then finding the right stuff. But the swap itself is easy peasy.
 
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great, as long as this swap doesnt cost me $11,500 I am set, since I bought my truck for $1500

why tf am I caring about 0 - 60 time, I have 8 other cars that do it in half that time easily
this is a truck
a truck, for my hauling, towing, and off roading...
 
What motor is in your truck right now to begin with? --the 5vz V6? The 1G Tundra drivetrain is veeeerrrry similar to the 1G Tacoma (and 3G 4Runner). Especially as far as the motor-trans-tcase is concerned. There's TONS of info on 4x4 conversions out there on tacomaworld and ttora. I converted my 2001 Tacoma Prerunner to 4x4 back in 2013 and was also told at that time to "just sell and buy a 4x4" which was completely stupid cause woulda cost me $7k+ at that time and I did my 4x4 swap for under $1000.... The 4x4 swap on the first gen Tundra and Tacoma is stupid easy. Its all just bolt right on.

Anyway, for the trans and cases etc etc. Easiest way to bolt onto your existing manual trans is find a 1G Tacoma or 3G 4runner case from behind the same motor and trans So if 3.4 and manual, you want the case and case housing/trans tail housing from the same 3.4 and manual trans. Cause then it just bolts right up. Well, sort of... Cause the non-4x4 transmissions have a different output shaft than the 4x4 versioned ones, so you have to swap out the output shaft as well. Or (what i did on my Tacoma) just swap complete trans+case on the truck in place of the 2wd trans.

The Tacoma/4Runner elocker diff will def NOT fit in the rear Tundra axle housing--different bolt patterns and size. (However, the non-elocker 1G Tacoma rear diff is the same as the 1G Tundra rear diff.) Front diffs are all the same between the 1G Tundra, 1G Sequoia, 1G Tacoma, and 3G 4Runner (other than the different gearing of course). Though the diff side-tube varies between manual hubs and ADD hubs and some ADD side-tubes use vacuum actuated motors and others have electric actuated motors.

Don't know driveshaft lengths, but again easiest way there is grab driveshafts from a wrecked truck that had the setup you want. So a 1G Tundra with the 3.4/manual/tcase. The caveat there is that it must be like-for-like and there were a handful of different transfer cases that came in the Tacoma/4Runner, so if you use a case from one of those (like say the J-shift case) then you may not find "bolt in" shafts from another 1G Tundra cause I'm pretty sure those never got a j-shift case. So resizing/getting new driveshafts may be the only way to go there.

For trans mount and cross member, you will need the one again from the similar versioned Tundra (3.4/manual/case)

Not sure about the 6 speed behind the V8. Seems I've seen talk on it out there on the wild nets. Tacoma world or t4r.org or on here maybe even. Def talk on putting the non-US LC 5-speed manual behind the V8. There's a good thread here on mud on that. But that would be a good bit different from just bolting stuff up if thats what you're trying to do.

Good luck. Wading thru all the crap info out there is prob the hardest part. And then finding the right stuff. But the swap itself is easy peasy.
yeah the 5VZFE, and good to know about the output shaft, that def makes me change my plans of just adding the transfercase and adapter onto my existing high mileage trans, I dont mind buying a JDM trans because of how cheap the truck was



and im not going to be able to find a manual 4wd tundra in the junkyard to just grab driveshafts off of, not the self serving ones at least
once I have the transmission sorted, the rest becomes super easy since it all matches the auto stuff.. just have to buy the driveshafts new from dorman
 
great, as long as this swap doesnt cost me $11,500 I am set, since I bought my truck for $1500

why tf am I caring about 0 - 60 time, I have 8 other cars that do it in half that time easily
this is a truck
a truck, for my hauling, towing, and off roading...

Some of us value our time and energy more than others I suppose.

The real question is "why tf" do you have 9 vehicles dude? You can only drive one at a time. I have different vehicles for different tasks too... but 9? Jesus. Your monthly insurance bill must be insane.
 
Some of us value our time and energy more than others I suppose.

The real question is "why tf" do you have 9 vehicles dude? You can only drive one at a time. I have different vehicles for different tasks too... but 9? Jesus. Your monthly insurance bill must be insane.

Your time and energy can't be /that/ valuable since you keep coming back in this thread adding zero value....
 
great, as long as this swap doesnt cost me $11,500 I am set, since I bought my truck for $1500

why tf am I caring about 0 - 60 time, I have 8 other cars that do it in half that time easily
this is a truck
a truck, for my hauling, towing, and off roading...


it will not cost you 11,500 because you have folks like all of us here in this forum rooting for you and having you back too , if i can help with the above FSM screen

shots or anything else please feel free to call on me , i will assist you in any way i can


a MTM conversion or at least a 2006-2007 Sequoia T-CASE manual shifter to H4 and L4 i would and could only dream for till now ! :):beer:
 
Personally, unless you need the V8 or maybe a double cab, I would sell the Tundra and get a 4x4 T-100 with the 3.4. They are some of the cheapest Toyota 4x4s.
 
Personally, unless you need the V8 or maybe a double cab, I would sell the Tundra and get a 4x4 T-100 with the 3.4. They are some of the cheapest Toyota 4x4s.
T100 was actually what I was looking for first, but they are mostly RWD and mostly Auto

I learned the Tundra had compatibility to swap 4WD easily, whereas the T100 2WD and 4WD frames are dramatically different, like how the pickup and 4runner frames are different between 2WD and 4WD

and then I found a local manual 2WD tundra for sale for cheap and jumped on it, whereas I had been looking for T100s for months
the tundra was fun to drive just like my 4runner
 
then show me one reasonably priced Manual 4x4 tundra
or one at all for sale really
I can easily 4x4 swap it even if that means buying a whole nother transmission
2 points:
1-I feel ya, also have an '00 Dodge 2500 360v8 4wd 5-SPEED, single cab, rarer than hens teeth; These days MANUAL Tranny's are like "ANTI-THEFT" Packages.....kids not raised on a FARM look down @ the Clutch Pedal like it's a 3rd EYE in the floorboard!. MT's are priceless when You live/wk/drive on grades all day long. All the rage is these AT's w/10spds or centrifugal shifting yada, yada, when we both know YOU can LOOK Out the Window seeing the jackknifed big rig across the Whole Road & down shift 2 Gears instead of 1 while standing on the brakes w/that trailer behind You....[looked until I was SICK of looking & wasting time trying to find what I wanted & opted for an AT '03 4wd Tundra solid top & bottom. Still regret it Every Time I hop in that Dodge!]
2-Also agree w/TMatt back way North of this in this thread, Doing 4.7L swap at same time makes a world of sense? Getting 1 set of bugs dealt with going Manual fm Auto (in Dodges/Fords even different flywheels), adds a second set of those similar bugs when doing engine swap later (Harnesses, brains, etc.)? W/the $1500. investment, I see where You want to go, & have done this multiple x in this life; go for the gusto, find a rebuilt or low miles V8 if that was the ultimate goal & my bet is factoring Everything (minus personal labor...others condemn, but let THEM fill out a tax return & claim their labor on their vehicle & let us know how it wks out for them? Some things are a labor of love) You come out the shiny back side of this venture way South of $4,500. w/a Dream Truck! It'll also be worth North of $10-12k to the right buyer (& there are a plethora of us out there!), IF You EVER wanted to sell it. I'd rather change out a clutch than torque converter & usually tranny too, any day. & Anyone who knows Anything already knows You can pull another 3-5mph properly driving w/a 5-6spd manual over an AT? (How do we suppose That Is, if AT's are so dam phenomenal? :facepalm: ) Just thinking at a keyboard.....
 
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