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Unread 01-21-2014, 12:13 AM   #1
JeepJohn92
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independent suspension on an XJ

I know it seems a little absurd, usually we go for D60s. But I was thinking if I took the indy suspension off of another truck what would be the general consensus? It seems like a pretty great idea but Ive lost myself on a few things:
1) How do indys do with diffs?
2) Its not easy to convert without a little fabbing right
3)Obviously I want to upgrade, whats available?
4) Converting to struts? Not a ton of flex there, awh well
5) Can I leave it to my original set up E.G. shocks and springs?
6) CV joints tick me off, not sure why.
7) They seem easy to break offroad and i dont trust em too much but only for light trail riding which is what I want.
8) what kind of armor is there for indy suspension?
As far as #7 whats a good truck to pull em off of? I dont want to spend a ton of money on a set trophy trucks use.

Lets see what you guys think.

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Unread 01-21-2014, 02:43 AM   #2
chriskeenan
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Its all pretty much going to be custom, the whole sub frame on out. you can armor it as you see fit as well.

If you look around the jeepspeed section of NAXJA there are a few people running a TTB setup. Might be a easier option if go-fast is what you want. But then again look at the KOH cars, they're almost all running strait axles and do just fine in the high speed sections.

If you were to be willing to fab up a IFS setup, ditch the struts go strait to coil overs, you'll get all the travel you want. RVC uses a CV joint in their axle shafts, cant say ive heard of a broken one yet, OEM CVs get trashed quick in a lifted off road vehicle, get something that is designed to do what you want to do. For the diffs you could use the d30 center section out of a liberty, IIRC there are IRS D44 centers out of Corvettes as well, also im sure someone out there makes a ford 9in IFS/IRS housing.

If you want something for light trail use what you have is fine, add a locker to one end and call it done. If you want an IFS rig get a Tacoma, it'd be cheaper than trying to turn your XJ into one.
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Unread 01-21-2014, 06:46 AM   #3
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I have seen a few broken rcv's. Most say they over steer them and jump on the throttle.

Don't waste your time on the ifs. Swap in a 44 or 60 and coilovers like stated above.
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Unread 01-21-2014, 11:14 AM   #4
CJ7-Tim
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More 4x4 trucks are converted from IFS, to straight axles, than the other way around.

For the cost of parts, and the time/money involved in some major custom fabrication, what benefits are expecting from IFS ?
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Unread 01-21-2014, 11:35 AM   #5
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Quote:
Originally Posted by JeepJohn92 View Post
6) CV joints tick me off, not sure why.
CV joints are just another moving part that is vulnerable to breaking and being a massive PITA. Thats why hahaha, and if that boot rips or anything there will be grease on everything.

I personally would stay with a solid axle. All that work and money doesn't nearly out weigh the benefits in my opinion.
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Unread 01-21-2014, 01:09 PM   #6
mschi772
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Yeah, if I wanted independent suspension, I can't think of why I wouldn't just switch over to a Toyota or Chevy or Suzuki or whatever. Much less money and work. I can respect someone wanting to do it just for the challenge/achievement though--crazy amount of work would be necessary.

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Unread 01-21-2014, 01:32 PM   #7
Caish
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You want something different, go find a set of portals axles.
http://www.fourwheeler.com/how-to/tr...-portal-axles/
Rocks, what rocks lol.
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Unread 01-21-2014, 07:03 PM   #8
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You want something different, go find a set of portals axles.
http://www.fourwheeler.com/how-to/tr...-portal-axles/
Rocks, what rocks lol.
I think id rather start warming up the Lincoln before spending $23 grand on new axels....
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Unread 01-21-2014, 07:06 PM   #9
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As far as benefits? Im not trying to revolutionize anything, Id just like to see it as a sick *** rally truck and a trail king. I know its completely backwards but I just want to see if there's a way to make it sick as f&#$
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Unread 01-21-2014, 07:28 PM   #10
chriskeenan
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As far as benefits? Im not trying to revolutionize anything, Id just like to see it as a sick *** rally truck and a trail king. I know its completely backwards but I just want to see if there's a way to make it sick as f&#$
There is a way, it's called "money", specifically tons of money.

Also. Look at the jeepspeed racers and pre runners. It can be done easier with solid axles and still function well as a slow trail rig. IFS is great if you can build the truck around it like in a trophy truck. Retrofitting it to an XJ is going to be painful.
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Unread 01-21-2014, 07:35 PM   #11
JeepJohn92
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Ill just make what I need if I do decide to do it. Ill draw some stuff up first and see what all can be done and see if I cant do something about those pesky cv joints. I just want to see what everyone thought and honestly I expected a little more positive response.
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Unread 01-21-2014, 08:00 PM   #12
chriskeenan
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Ill just make what I need if I do decide to do it. Ill draw some stuff up first and see what all can be done and see if I cant do something about those pesky cv joints. I just want to see what everyone thought and honestly I expected a little more positive response.
The idea gets tossed around every once in a while. It's almost unanimously shot down. It's totally possible to make it work and work well, but it's all uncharted territory on the XJ.
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Unread 01-21-2014, 08:11 PM   #13
mschi772
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Quote:
Originally Posted by JeepJohn92 View Post
I expected a little more positive response.
Really? I mean, I'm not judging the idea, but you had to know the response was going to be luke warm at best. Putting IFS on an XJ is probably about as doable as turning one into a convertible (Jeep did convertible XJ's twice actually--prototypes in 86 and again in 90 with the Targa and Freedom respectively). Most people in our world would make an effort to put straight axles in place of IFS which isn't easy, and what you're suggesting is the opposite of that and much harder.

Check this out; it's very interesting: http://www.allpar.com/SUVs/lil-blue.html


P.S. http://www.cherokeeforum.com/f2/inde...pension-17444/

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I apologize because we all know what you meant of course, but I giggled at
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rear ifs
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Unread 01-21-2014, 08:27 PM   #14
skyway0018746
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If your talking about rear ifs check out thunderbird s from the 80' I believe. Its an 8.8 many people put them under 73-79 f100 's
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Unread 01-21-2014, 09:07 PM   #15
JeepJohn92
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Quote:
Originally Posted by chriskeenan View Post
The idea gets tossed around every once in a while. It's almost unanimously shot down. It's totally possible to make it work and work well, but it's all uncharted territory on the XJ.
Well what if I chart it? This might take me a while....
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