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Toyota IFS in KJ?
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Author:  Mountainman [ Mon Jul 13, 2015 9:51 pm ]
Post subject:  Toyota IFS in KJ?
Here's my crazy thought for the week. I so hate the inability to unlock my hubs that I was thinking, since I have the parts, could an old 4runner IFS be transplanted into a CRD? Or, an IFS setup out of any other vehicle that has manually locking hubs? And, would this require a lot less modification than a SFA swap? If it's just as much expense in fabrication, then SFA makes more sense I guess, although I like the smooth ride on the terrible roads I drive. I have no need for more than 2.5" lift also, so SFA doesn't make much sense does it?

Thanks for any commentary, especially you fabricators out there :goink:

:POPCORN:
Author:  flash7210 [ Mon Jul 13, 2015 10:50 pm ]
Post subject:  Re: Toyota IFS in KJ?
Anything is possible with enough money.

What's wrong with the KJs always locked hubs?
I think it's great. Just like a humvee.
Yes, it's a little bit more wear and tear on the front driveshaft joints and bearings but you never have to stop and think about locking your hubs.

What the CRD really needs is more front suspension travel. Not locking hubs.
A redesigned front axle and cradle with longer control arms and CV axles.
Author:  Mountainman [ Mon Jul 13, 2015 11:14 pm ]
Post subject:  Re: Toyota IFS in KJ?
flash7210 wrote:
Anything is possible with enough money.

What's wrong with the KJs always locked hubs?
I think it's great. Just like a humvee.
Yes, it's a little bit more wear and tear on the front driveshaft joints and bearings but you never have to stop and think about locking your hubs.

What the CRD really needs is more front suspension travel. Not locking hubs.
A redesigned front axle and cradle with longer control arms and CV axles.


I just like simple mostly. Less moving parts, and I like to try and get as many MPG's as possible. All that front drive train moving, and needing fluid change x2, and crap front drive line boot going bad every 50k...
Author:  Lancer [ Tue Jul 14, 2015 3:56 am ]
Post subject:  Re: Toyota IFS in KJ?
As flash said, you probably could, if you spent enough time and money - especially money. It would probably cost more to do and set up than you would ever save on fuel, fluids and replacing boots etc. I learned that lesson many years ago modding a bike!

One of the most dangerous and expensive thoughts to have, is to ask the question "how hard can it be?" :)
Author:  Mountainman [ Tue Jul 14, 2015 11:46 am ]
Post subject:  Re: Toyota IFS in KJ?
Lancer wrote:
As flash said, you probably could, if you spent enough time and money - especially money. It would probably cost more to do and set up than you would ever save on fuel, fluids and replacing boots etc. I learned that lesson many years ago modding a bike!

One of the most dangerous and expensive thoughts to have, is to ask the question "how hard can it be?" :)


Yeah, I must be dreaming out loud again :dizzy:
Author:  CB Eng [ Tue Jul 14, 2015 1:36 pm ]
Post subject:  Re: Toyota IFS in KJ?
I have thought of doing something like this. I am more leaning to using a Dana 35 hub assembly from a TTB Ranger and building my own Spindle with wider upper and lower control arms. This would keep the same wheel bolt pattern. Not sure if the stock rims would work or not.
This is kind of what I am talking about. I am measuring the stock KJ parts, but don't have anything drawn yet.
Image
Author:  tjkj2002 [ Tue Jul 14, 2015 9:43 pm ]
Post subject:  Re: Toyota IFS in KJ?
Mountainman wrote:
flash7210 wrote:
Anything is possible with enough money.

What's wrong with the KJs always locked hubs?
I think it's great. Just like a humvee.
Yes, it's a little bit more wear and tear on the front driveshaft joints and bearings but you never have to stop and think about locking your hubs.

What the CRD really needs is more front suspension travel. Not locking hubs.
A redesigned front axle and cradle with longer control arms and CV axles.


I just like simple mostly. Less moving parts, and I like to try and get as many MPG's as possible. All that front drive train moving, and needing fluid change x2, and crap front drive line boot going bad every 50k...
I drove for over a year with the whole front diff,driveshaft,and CV axles pulled in my KJ and you know how much gas mileage that added up to? Not even enough to accurately measure(less the 1/2%).

The setup the KJ has and every newer IFS setup is vastly stronger then selectable hubs and with these newer systems the mpg loss is not even noticeable.Plus you have the ability to shift into 4wd at any time and not have to stop and get out to lock the hubs in.


Sure I run selectable hubs on my SFA conversion but that was from a engineering standpoint that they are my "weak link" so they are easy to change on the trail and pretty cheap(have lifetime warranty).Plus my front axle u-joints are built for brute strength not daily driving longevity(no needle bearings in u-joints).
Author:  Mountainman [ Tue Jul 14, 2015 10:28 pm ]
Post subject:  Re: Toyota IFS in KJ?
tjkj2002 wrote:
Mountainman wrote:
flash7210 wrote:
Anything is possible with enough money.

What's wrong with the KJs always locked hubs?
I think it's great. Just like a humvee.
Yes, it's a little bit more wear and tear on the front driveshaft joints and bearings but you never have to stop and think about locking your hubs.

What the CRD really needs is more front suspension travel. Not locking hubs.
A redesigned front axle and cradle with longer control arms and CV axles.


I just like simple mostly. Less moving parts, and I like to try and get as many MPG's as possible. All that front drive train moving, and needing fluid change x2, and crap front drive line boot going bad every 50k...
I drove for over a year with the whole front diff,driveshaft,and CV axles pulled in my KJ and you know how much gas mileage that added up to? Not even enough to accurately measure(less the 1/2%).

The setup the KJ has and every newer IFS setup is vastly stronger then selectable hubs and with these newer systems the mpg loss is not even noticeable.Plus you have the ability to shift into 4wd at any time and not have to stop and get out to lock the hubs in.


Sure I run selectable hubs on my SFA conversion but that was from a engineering standpoint that they are my "weak link" so they are easy to change on the trail and pretty cheap(have lifetime warranty).Plus my front axle u-joints are built for brute strength not daily driving longevity(no needle bearings in u-joints).


Hmm, thanks for setting me strait on this, again.. :5SHOTS: I guess I just need to find something more worthwhile to modify on my CRD :D
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