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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > IRO or RC 3.5" lift?

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Unread 07-31-2012, 03:23 PM   #16
Cmense
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1998 XJ Cherokee 
 
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Yeah i bought the rear coils also. I have the 4.0 and to save the hassle with getting v8 coils i bought the iro rear with the kit. They are cheap anyways only like 120$ and all new parts is always a good thing

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Unread 07-31-2012, 04:48 PM   #17
iser
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off topic:

just received my zone 4" (yea, i know IRO is the way to go, but IRO is insanely expensive in alaska...about $350 shipping for the $450 kit....i complained this to IRO and they ignored me haven't heard back....so i had to go with zone which had a feasible price).

anyway, i haven't installed it yet (probably won't get to for 2 weeks or so. busy as hell lately) but i am not too happy with the build quality. i was not expecting a perfectly machined parts, but it just looks cheap. it feels solid and well constructed, but just wasn't machined well. also, i already have one control arm that was not tapped properly and i can't screw in the grease fitting. it doesn't fit. period. there are nuts and bolts that weren't threaded properly and won't screw on without excessive force which will damage the threads. it's really annoying when you have to work with sub-standard nuts and bolts. it's so frustrating.

so, i'll write up a full review once i have it up and running, as long as the ride quality is okay (i'm not expecting stock), i'll be satisfied considering the kit was only $600 for me. but at the moment, i'm already disappointed.

go with IRO.
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Unread 07-31-2012, 08:30 PM   #18
torchd
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Quote:
Originally Posted by PolkaPower View Post
There is an option to add the rear coils which is what I would do. No more front to rear swaps for me.
That is perfect, I wouldn't want to swap the F>R, I would want new parts.

Thanks Polka.. Also I would want new rear UCAs and LCAs as well..

But if I do a IRO 3.5" with 2" BB I would need to go to LAs correct?
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Unread 07-31-2012, 09:32 PM   #19
Cmense
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Quote:
Originally Posted by torchd

But if I do a IRO 3.5" with 2" BB I would need to go to LAs correct?
You need all 8 adj CAs or fixed
Rear adj track bar
Long arms are recommended
Longer swaybar links then what the kit gives you
And longer shocks.
Itll ruin your ride quaility believe me ive thought about it. My 3.5 iro is like a cadillac on the trail. Spacers will be a rough ride and may break parts so it can be done but not a good idea
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Unread 07-31-2012, 09:45 PM   #20
PolkaPower
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It just doesn't make sense to go 3.5" then add a 2" spacer. Just get the 5.5" springs and then all of the other correct parts to go along with that height. It's pretty stupid to get everything that goes with a 3.5" lift when you really are going to 5.5". You will have 3.5" parts that will not work at 5.5". Just do it right the first time. Coils are much better than spacers too.
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Unread 07-31-2012, 09:50 PM   #21
melk
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It's killing me but I've had 4" springs sitting in my garage for over a year now because I am waiting to get proper adjustable trackbars front and rear before I lift it. Gaaahhhh.....
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Unread 08-02-2012, 04:06 PM   #22
country93
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Do u need to upgrade the CA's on the 3.5in iron rock kit. And will I be able to use my stock rims with 31x10.50r15. Thanks
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Unread 08-02-2012, 04:16 PM   #23
PolkaPower
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Quote:
Originally Posted by iser View Post
off topic:

just received my zone 4" (yea, i know IRO is the way to go, but IRO is insanely expensive in alaska...about $350 shipping for the $450 kit....i complained this to IRO and they ignored me haven't heard back....so i had to go with zone which had a feasible price).

anyway, i haven't installed it yet (probably won't get to for 2 weeks or so. busy as hell lately) but i am not too happy with the build quality. i was not expecting a perfectly machined parts, but it just looks cheap. it feels solid and well constructed, but just wasn't machined well. also, i already have one control arm that was not tapped properly and i can't screw in the grease fitting. it doesn't fit. period. there are nuts and bolts that weren't threaded properly and won't screw on without excessive force which will damage the threads. it's really annoying when you have to work with sub-standard nuts and bolts. it's so frustrating.

so, i'll write up a full review once i have it up and running, as long as the ride quality is okay (i'm not expecting stock), i'll be satisfied considering the kit was only $600 for me. but at the moment, i'm already disappointed.

go with IRO.
That really sucks man. I hate that feeling when you are excitement is replaced with disappointment.

All I have to say is be really careful. When I bought a Rusty's TB because I was trying to save money, it was poorly threaded and the tie rod end wouldn't screw into the pipe so I sent it back. All they did was re tap the same pipe and send it back to me. I installed it but on it's maiden voyage the threads that were re tapped blew out and the bar separated and I almost hit a tree. I was only going about 35 thankfully. After that I never bought cheap crap again. I went with KOR. Throwing money away on cheap parts sucks.
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Unread 08-02-2012, 07:21 PM   #24
Cmense
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Quote:
Originally Posted by country93
Do u need to upgrade the CA's on the 3.5in iron rock kit. And will I be able to use my stock rims with 31x10.50r15. Thanks
Yes stock wheels and 31s will fit. No need to upgrade cas but make sure your bushings are good because you will be increasing tge angle of your cas and will feel every bump if the bushings are shot
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Unread 08-02-2012, 07:47 PM   #25
two_much_talk
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Quote:
Originally Posted by PolkaPower View Post
That really sucks man. I hate that feeling when you are excitement is replaced with disappointment.

All I have to say is be really careful. When I bought a Rusty's TB because I was trying to save money, it was poorly threaded and the tie rod end wouldn't screw into the pipe so I sent it back. All they did was re tap the same pipe and send it back to me. I installed it but on it's maiden voyage the threads that were re tapped blew out and the bar separated and I almost hit a tree. I was only going about 35 thankfully. After that I never bought cheap crap again. I went with KOR. Throwing money away on cheap parts sucks.
x2

I installed RCs 4" long arm on my 5.9. Ended up swapping out the joints for Ruff Stuff heims because of how crappy they were. The track bar was a joke. Ran it for about 2 weeks before I built my own. The sway bar disconnects are adequate but are gonna need to be replace after about a year. ( do they make an Antirock for ZJs?? )

The brackets and arms otherwise were fine. The kit accepted standard heims in the arms. The belly skid seems to be good quality and the fancy nut adaptors that go in the "subframe" are really nice.

Not sure that I'd buy it again, its for a trail rig and not a DD, with that in mind it works well. (crazy flex with the heims) But I'd likely go RE or IRO to do it again.

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Unread 08-02-2012, 07:52 PM   #26
Fixxxer_ZJ
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The IRO kit consists of rough country springs, shocks, and endlinks..... The trackbar is an IRO part
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Unread 08-02-2012, 08:01 PM   #27
country93
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Quote:
Originally Posted by ejschultz View Post
The IRO kit comes with a front adjustable trackbar. The RC kit has instructions on how to drill a hole for your stock trackbar.
Quote:
Originally Posted by Cmense View Post
Yes stock wheels and 31s will fit. No need to upgrade cas but make sure your bushings are good because you will be increasing tge angle of your cas and will feel every bump if the bushings are shot
Thanks cmense
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Unread 08-02-2012, 08:03 PM   #28
FAlfani81
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Quote:
Originally Posted by Fixxxer_ZJ
The IRO kit consists of rough country springs, shocks, and endlinks..... The trackbar is an IRO part
Doesn't IRO have there own springs but offer rough country components for some kits? IRO has a lifetime warrantee on there springs. I doubt they would warrantee RC springs under there own name when they are known to end up sagging.
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Unread 08-02-2012, 08:10 PM   #29
ejschultz
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Quote:
Originally Posted by FAlfani81 View Post
Doesn't IRO have there own springs but offer rough country components for some kits? IRO has a lifetime warrantee on there springs. I doubt they would warrantee RC springs under there own name when they are known to end up sagging.
IRO uses their own springs with all their lifts and has RC Hydro 8000 shocks as the standard shocks with some of their lifts. The lifts can be upgraded to RC Nitro 9000 shocks, DT 8000s, or Blisteins. The long arm kits come with DT 8000s because they're one of the longest shocks you can mount in the stock locations. They also used to offer RC kits, IIRC. They had the 4" lift from them. I'd imagine that lift came with a RC warranty, not the IRO warranty.
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Unread 08-02-2012, 08:21 PM   #30
dougmorgan99
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Quote:
Originally Posted by FAlfani81 View Post
Doesn't IRO have there own springs but offer rough country components for some kits? IRO has a lifetime warrantee on there springs. I doubt they would warrantee RC springs under there own name when they are known to end up sagging.
That is correct, when I bought my IRO 3.5 a year ago I asked about the springs with Josh from IRO. He said they use to use RC springs but now make their own. Hence why I bought the rear springs versus doing the F/R swap. It was worth it because I wanted the lifetime on the springs sagging since I am running a bunch of armor, accessories and very heavy rear bumper w/ tire carrier.
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