Build 1991 FJ80 - The Long Game | Build Thread | 1UZ Swap

[bowtech4life]

I also will need to build some sort of offset plate that will move the tcase shifter 9-10" rearward....I was thinking of something like 3/8" steel, bolt to stock location at the front with the 4 sealing bolts then bolt the back of the plate to where the hoisting hooks are placed then bolt the stock t-case shifter somewhere on the plate where it needs to be. I'd also need to take a section of rod out of the tcase rod linkage and reweld the eye back on.

Blue tape on the floor is where the stock shifter placement is landing with the drivetrain and engine in its new home.

Here is a picture of the shifter in its stock location. The offset plate would be bolted in the stock location of the shifter and at the hoist hook location. Thoughts??

 

[Broski]

Nice score
Following a long.

Are you familiar with the 2UZ swap thread ?
It’s full great information

 

[bowtech4life]

Nice score
Following a long.

Are you familiar with the 2UZ swap thread ?
It’s full great information

I'm not! maybe I should take the time to read through some. In the early stages of my swap, I wasn't finding squat on the particular issues i'm facing now (other then the 2UZ-FE maifold swap). But I haven't seen any good build threads on the 1UZ swap. I'll snoop around here some more

 

[Broski]

Here you go

Thread '2UZ Swap info'

Dec 19, 2024

This is NOT a thread to compare the UZ to the LS or any other platform. Hundreds of those already exist, carry on those discussions elsewhere, please.

Many threads exist in Mud asking about what's involved in swapping Toyota's 4.7L V8, the 2UZ-FE, but few of us that have done them chime in to help the decisions for the next guy, and the threads quickly become messy. Let's see about changing that. There are a handful of builds already in here that I'll add for reference.

I will not remember everything off the top of my head, so please ask questions and help...

• Zjohnsonua
• Replies: 95
• Forum: 80-Series Tech

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• 

 

[bowtech4life]

Here you go

Thread '2UZ Swap info'

Dec 19, 2024

This is NOT a thread to compare the UZ to the LS or any other platform. Hundreds of those already exist, carry on those discussions elsewhere, please.

Many threads exist in Mud asking about what's involved in swapping Toyota's 4.7L V8, the 2UZ-FE, but few of us that have done them chime in to help the decisions for the next guy, and the threads quickly become messy. Let's see about changing that. There are a handful of builds already in here that I'll add for reference.

I will not remember everything off the top of my head, so please ask questions and help...

• Zjohnsonua
• Replies: 95
• Forum: 80-Series Tech

• 
• 

Now i'm panicking a bit because i never checked suspension stuff with my engine sitting this low. not sure how i'll do that without a crossmember installed though (trans is being held up by the jack currently. everyone seems to not have any issues with engine mounts and stuff. damn. maybe i should have went 2uz instead... also appears that no one is having shifter location issues. may just be a 1UZ thing though...

 

[Broski]

I thought size wise they were about the same. but I'm no expert and don't know for sure.
I have followed a few of these swap threads and I haven't seen the motor that far forward.

 

[bowtech4life]

I thought size wise they were about the same. but I'm no expert and don't know for sure.
I have followed a few of these swap threads and I haven't seen the motor that far forward.

Here’s pics of my clearance between the firewall and the valve covers. I couldn’t get it any further back

Disregard the red circle in the pic. But take note of the valve cover clearance to the master cylinder.

I don’t think even if I could have, it wouldn’t have brought it far enough back to line up the shifter. I mean maybe it was the mounts…maybe they needed to be ground down more

 

[JoeW]

Very cool build. Lots of good info. I'm right across the road in Lynnwood if you ever need an extra set of hands.

 

[bowtech4life]

Very cool build. Lots of good info. I'm right across the road in Lynnwood if you ever need an extra set of hands.

Sounds good man. Appreciate the offer to help. Having three young kids all with their friends and commitments makes time for this project challenging but there are occasions I can get a whole day in. Mostly it’s an hour here, an hour there which makes it quite difficult to get any real progress you can see but it’s just something I’ve accepted hence “The Long Game” title haha.

 

[JoeW]

I get that. I always tell folks the hardest part of an LS swap is having a family. (Kids and wives are awesome, just definitely eat up garage time lol)

 

[bowtech4life]

This is the arm that comes off of the shifter from the cab. I was thinking of cutting it where my sharpie mark is then cutting where the rod connects and re-welding it. I’d then need to extend the rod too. The purpose of this would be to get the tcase another 1-1/2” upward. I would delete this completely and go cable because I wouldn’t even need the arm but I’m just not sure about how it would attach and all.

 

[Zjohnsonua]

The transmission doesnt need the O/D sensor to shift, but without it most UZ ECUs wont lock up the converter. Make sure and double check those 1uz control requirements.

Definitely pull the springs and check that pan clearance. Mounts may be in, but if youre making contact you may can make pan modifications. You don't want the axle making those mods for you like mine did.

The factory 4th gen 4runner and GX470 shifter uses a cable. You wont need the electronic portion of those shifters, but the shifter and cable would solve your location issues. Make sure and get the detent arm for those models...else you'll swear youre going to break the cable before you get the gears to change.

Keep it up! You'll get there.

 

[bowtech4life]

The transmission doesnt need the O/D sensor to shift, but without it most UZ ECUs wont lock up the converter. Make sure and double check those 1uz control requirements.

Definitely pull the springs and check that pan clearance. Mounts may be in, but if youre making contact you may can make pan modifications. You don't want the axle making those mods for you like mine did.

The factory 4th gen 4runner and GX470 shifter uses a cable. You wont need the electronic portion of those shifters, but the shifter and cable would solve your location issues. Make sure and get the detent arm for those models...else you'll swear youre going to break the cable before you get the gears to change.

Keep it up! You'll get there.

Thank you!!! I sent you a DM about a shifter I’ve got available to me locally and am hoping I’m understanding what you’re talking about.

I’ll definitely remove the coils and check clearance since I’ve got to rip them out anyway to install +2” coils anyway.

Will definitely double check the ECU communication with the O/D SS

 

[mrsleeve]

Unless there is a signifgant dimention differance between 1uz and 2uz cam covers, your sitting biased a little further drivers side and forward from most of the rest of us. Your J80 T Case shifter is the prefered one to have as with the 100 series trans casting (not sure about 4r Gx tunda etc) it bolts up just ahead of the hooks and fits 90% into the factory location. You being that far forward for your shifter mount seems amiss given that your only an 2-3 inches further forward that most of the rest of us.

check out my posts 62 and I think 66 in the 2uz swap thread

 

[bowtech4life]

Unless there is a signifgant dimention differance between 1uz and 2uz cam covers, your sitting biased a little further drivers side and forward from most of the rest of us. Your J80 T Case shifter is the prefered one to have as with the 100 series trans casting (not sure about 4r Gx tunda etc) it bolts up just ahead of the hooks and fits 90% into the factory location. You being that far forward for your shifter mount seems amiss given that your only an 2-3 inches further forward that most of the rest of us.

check out my posts 62 and I think 66 in the 2uz swap thread

I just analyzed your pic where your t-case shifter pops up and your shifter mounting location on top of your tranny is further back then mine. I think I have a different variant tranny then the rest of you. I need to read more about this variant because the Model No. stamped on the side is "30-43LE" see below:

Also analyzing your passenger side valve cover in your post on the 2UZ thread - I am only about 2" forward as you said so I wouldn't expect such a major difference like we're seeing here. I think the issue I'm up against is the transmission variance....this is the Transfer Case Shifter charlie foxtrot i'm in.

For the transmission CF I found a 4th gen 4runner shifter assembly with a cable but also unsure if its got everything I need for this conversion. Zjohnsonua mentioned that I needed the detent arm - is that transmission side?

Really appreciate you guys helping me along with this - I'd be pretty lost and be doing a whole lot of fabbing for nothing.

 

[bowtech4life]

I am second guessing now if maybe i have an AW4 from a 1987-2001 Jeep XJ Cherokee. At some point, someone had to have sourced a UZ bell housing though if that is the case and installed it. Reading this article: The Novak Guide to the Aisin-Warner AW4 Transmission - https://www.novak-adapt.com/knowledge/transmissions/automatic/aw4.html it apparently is the 2wd version since mines stamped "30-43LE" not "40-34LE". The HF2A bolted right up to it. I'm gonna keep digging but my Tcase shifter mod idea will likely need to happen as well as the transmission shifter with cable.

Whats even more weird is it appears that these came in the FZJ80's as well. I just made an assumption i had an early TOYOTA variant of the 343F. This isn't a show stopper, just need to nail down exactly what the heck i've got. Pretty sure its out of a FZJ80. Is there a serial number look up somewhere that anyone knows of?

 

[bowtech4life]

This eBay listing description states that this transmission was pulled from a 1997 Land Cruiser and it looks 100% identical to mine. But notice how far forward the t-case shifter mount is in front of the hooks? Thats my dilema with this transmission so far.

 

[mrsleeve]

The FzJ trans housing had the mounting point a bit forward vs the early fj80 and the latter 100 series casting of the 343.

I am using a 100 series 4sp a343 and an early FJ80 tcase shifter as it’s more straight up and the FZJ tcase shifter is off set forward.

Maybe try getting your hands on an FZJ tcase shifter. It might not get you all the way there but it should be closer.

 

[bowtech4life]

Does anyone have a good thread somewhere that captures how they've adapted the 4th gen 4runner shifter into their stock FJ80 shifter and how they adapted it to their transmission?

 

[Zjohnsonua]

Does anyone have a good thread somewhere that captures how they've adapted the 4th gen 4runner shifter into their stock FJ80 shifter and how they adapted it to their transmission?

You'll need the 4th Gen shifter and cable. I'm not sure if others have already done this. You may be blazing the trail for others after you.