Fj40 on 80 coils and axles

[HandForged]

I know there was a thread or two on this but I can't for the life of me find it. Searched to death, I want to know how that rig turned out. Someone toss me a bone here with a link to the thread please.
Thanks!

 

[mr jits]

I know there was a thread or two on this but I can't for the life of me find it. Searched to death, I want to know how that rig turned out. Someone toss me a bone here with a link to the thread please.
Thanks!

There's been two that I can think of and a few 40/43/45 bodies on 80 frames. I'll see if I have any bookmarked.

 

[Tank5]

I have been thinking through this same thing.
Here is a build on another site for pictures.

40 series chassis, 80 series suspension, 75 series 5 speed, 12HT Diesel, Disc Brakes

Started in 2009, completed Oct 2014.

www.landcruiserclub.net

 

[Tank5]

I was talking to some other members about using 80 suspension on my 45. I was told I should consider a custom linked set up.

I talked to proffitts about there linked suspension and they use a 3 link with 80 radius arms and coilovers in the front. In the rear they use seperate coils and shocks and parallel arms. They use custom brackets for their set up but otherwise it sounds like it mimics the 80 series set up pretty closely. If I could afford it I would have them do mine. I am considering using coilovers in the front to save save space but I already have the 80 set up, so I am still thinking it through.

Sorry not much help but I am interested in hearing what others have to say.

 

[HandForged]

I was talking to some other members about using 80 suspension on my 45. I was told I should consider a custom linked set up.

I talked to proffitts about there linked suspension and they use a 3 link with 80 radius arms and coilovers in the front. In the rear they use seperate coils and shocks and parallel arms. They use custom brackets for their set up but otherwise it sounds like it mimics the 80 series set up pretty closely. If I could afford it I would have them do mine. I am considering using coilovers in the front to save save space but I already have the 80 set up, so I am still thinking it through.

Sorry not much help but I am interested in hearing what others have to say.

I'm more interested in seeing their thoughts after the swap than any of the build information. I have been building and fabricating a LOOOOONNNGG.......time. HA! Not sure how I would approach it, most likely as close to factory as possible with custom DOM links and joints in place of the factory stuff. As long as you take lots of pictures and can do a little geometry you can do it too. Don't let it intimidate you, dive in and screw up. That's the only way to learn anything.

 

[HandForged]

I have been thinking through this same thing.
Here is a build on another site for pictures.

40 series chassis, 80 series suspension, 75 series 5 speed, 12HT Diesel, Disc Brakes

Started in 2009, completed Oct 2014.

www.landcruiserclub.net

That one looks cool but he moved everything inboard on the rear axle. Not sure how I feel about that. Thanks for the link though...that's a nice FJ for sure!

 

[White Stripe]

Builds - '74 FJ40 Build: My 1st Cruiser

Pointing the rear pinion 1* below the Tcase output and having a CV joint installed solved the rear DS vibrations. The CV joint is running at about an effective angle of 9* down. The shaft is also running at about 5* side to side, a consequence of a centred driveline and using an 80 series rear...

forum.ih8mud.com

 

[too tall]

I have an fj40 with a 4linked rear using an 80 series axle and coils. It works great . The coils are just right in my opinion. I have a rear suck down winch which I use quite a lot. Packaging it was a bit of a compromise on the triangulation but I managed to get it double triangulated even with a one piece offset case. I used factory bump stops as well. They are perfect as they should be inside the coils. There are pictures on here somewhere. I would be happy to send you a few of my setup if you'd like.

 

[too tall]

Show me your 4-Linked FJ40 rear axle with stock T-case

forum.ih8mud.com

Found the thread .

 

[Tank5]

I have an fj40 with a 4linked rear using an 80 series axle and coils. It works great . The coils are just right in my opinion. I have a rear suck down winch which I use quite a lot. Packaging it was a bit of a compromise on the triangulation but I managed to get it double triangulated even with a one piece offset case. I used factory bump stops as well. They are perfect as they should be inside the coils. There are pictures on here somewhere. I would be happy to send you a few of my setup if you'd like.

I would like to see pictures.

 

[GLTHFJ60]

IPOR's FZJ40 build thread seems to have been deleted, but it's a sick truck.

 

[Tank5]

IPOR's FZJ40 build thread seems to have been deleted, but it's a sick truck.

View attachment 2102080

View attachment 2102081

View attachment 2102082

That is a nice rig! I believe they built that on an 80 chassis though rather welding the 80 suspension on the 40 frame.

 

[subzali]

There is always Gary's:

Builds - Project X

Project X/FZJ45 I have finally started my new project mating a really nice 96 80 series chassis, complete, to my old, pretty good shape 65 FJ45 LWB pickup. Like my FJ62, I will be taking my time and trying to do it right and will post play by play pictures as I get somewhere. I started with a...

forum.ih8mud.com

 

[HandForged]

I'm contemplating scrapping my original idea of using the 40 frame with the 80 suspension grafted and possibly just using the 80 frame whole. I have a very clear picture in my head of what I am looking for as an end result and I think it might just be easier. Less fab work, more getting down to business. Steering is already worked out, everything is where it needs to be. The full drivetrain is already sorted so I could spend my time working on the body and building the custom bed.

 

[GLTHFJ60]

I'm contemplating scrapping my original idea of using the 40 frame with the 80 suspension grafted and possibly just using the 80 frame whole. I have a very clear picture in my head of what I am looking for as an end result and I think it might just be easier. Less fab work, more getting down to business. Steering is already worked out, everything is where it needs to be. The full drivetrain is already sorted so I could spend my time working on the body and building the custom bed.

It'd be silly imo to rework the entire 80 suspension geometry to work under the narrower 40 frame. This is the best route.

 

[yotadude520]

@GEspo had one with an 80 frame with a 40 body. Here's the build & for sale thread:

Ultimate Cruisers FZJ40

forum.ih8mud.com

For Sale - FZJ40

The true FZJ40. Take one perfect 1994 80 series Land Cruiser with 130K and one perfect 1978 40 series and create the FZJ40. The build was documented heavily on Ih8mud's form under "Ultimate Cruisers FZJ40"(google it). What it is: Frame and drivetrain with 1FZ motor from a 1994 80 series with...

forum.ih8mud.com

 

[YoYoHo]

Putting the 80 Series Suspension onto the 40 Chassis is not the best option and you will find it a compromise and a PITA. The one linked above that belongs to Watrob was a huge compromise and he did non of it himself. It was based on an 77 FJ 40 Chassis that I had hot dipped for another project. The limitations are that the 80 Series stuff is designed around the 80 series stuff lol and if you don't have the constraints then why restrain.

I have been through this a number of times and my opinion is that the 80 Series chassis and Suspension is best left on the 80 series chassis. I have no limitations in regards to Fab and Engineering and when it came to my own forever build it was a no brainer to go with cut and shut 80 series chassis over a custom setup for one simple reason ...... on road handling and behavior . For anyone who has ever built a linked , coil over truck / buggy you will know what I am talking about and know damn well that they are a compromise and not the best use for Dual Purpose and are better suited to Heavier Offroad use as opposed to Daily Duties.

Not to mention the strength of the 80 series chassis and the usually rust free nature of it over the 40 ...

Now don't get me wrong there is nothing wrong with custom stuff I am just saying for a great dual use truck setup you are hard pushed to go past an stock 80 series setup and design. I have done a few swerve, land change, torsion and beaming and brake test under controlled conditions as required by several countries for DOT compliance and it is very eye opening how badly some stuff goes when you have a "New" driver in your truck who is out to test it not cover up shortfalls by talking up their modifications.

Anyway, enough dribble feel free to check out my build thread which is an 80 series chassis with FJ 43 body .

Happy to answer any questions you may have the 80 series conversion is very popular in Australia due to engineering and compliance limitations

Builds - Building the BJZ43 = FJ43 + FJZ80 + BJ75 :)

forum.ih8mud.com

 

[HandForged]

Putting the 80 Series Suspension onto the 40 Chassis is not the best option and you will find it a compromise and a PITA. The one linked above that belongs to Watrob was a huge compromise and he did non of it himself. It was based on an 77 FJ 40 Chassis that I had hot dipped for another project. The limitations are that the 80 Series stuff is designed around the 80 series stuff lol and if you don't have the constraints then why restrain.

I have been through this a number of times and my opinion is that the 80 Series chassis and Suspension is best left on the 80 series chassis. I have no limitations in regards to Fab and Engineering and when it came to my own forever build it was a no brainer to go with cut and shut 80 series chassis over a custom setup for one simple reason ...... on road handling and behavior . For anyone who has ever built a linked , coil over truck / buggy you will know what I am talking about and know damn well that they are a compromise and not the best use for Dual Purpose and are better suited to Heavier Offroad use as opposed to Daily Duties.

Not to mention the strength of the 80 series chassis and the usually rust free nature of it over the 40 ...

Now don't get me wrong there is nothing wrong with custom stuff I am just saying for a great dual use truck setup you are hard pushed to go past an stock 80 series setup and design. I have done a few swerve, land change, torsion and beaming and brake test under controlled conditions as required by several countries for DOT compliance and it is very eye opening how badly some stuff goes when you have a "New" driver in your truck who is out to test it not cover up shortfalls by talking up their modifications.

Anyway, enough dribble feel free to check out my build thread which is an 80 series chassis with FJ 43 body .

Happy to answer any questions you may have the 80 series conversion is very popular in Australia due to engineering and compliance limitations

Builds - Building the BJZ43 = FJ43 + FJZ80 + BJ75 :)

forum.ih8mud.com

Already made the decision to go that route. trying to find someone now who wants the drivetrain out of my 80, I need to get it stripped and inside before the real winter starts here in montana.

 

[Tank5]

I agee that the 80 chassis and suspension are superior to the 40 series chassis with the 80 suspension swapped on.

However if someone planned to keep the 40 series chassis to try and retain more of the original vehicle but plans to ditch the leafs regardless, would you feel the 80 suspension is an up grade or should one go another route? Consider the rig I am asking about is not a hardcore wheeler but more of a mild overlander type trail rig. I would prefer to maintain better road manners than crazy trail articulation.

 

[HandForged]

I agee that the 80 chassis and suspension are superior to the 40 series chassis with the 80 suspension swapped on.

However if someone planned to keep the 40 series chassis to try and retain more of the original vehicle but plans to ditch the leafs regardless, would you feel the 80 suspension is an up grade or should one go another route? Consider the rig I am asking about is not a hardcore wheeler but more of a mild overlander type trail rig. I would prefer to maintain better road manners than crazy trail articulation.

Well I don't think anyone would accuse the 40 of being a Cadillac smooth ride. Now the 80 is significantly better in that department. Coils are just smoother and there is a lot of support for them. They ride better and flex better. What I am after isn't a hardcore wheeler either. More of a multipurpose trail rig, mountain rig and semi daily driver. Think of it as a swiss army knife on 38's....