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post #1 of (permalink) Old 04-10-2002, 04:29 PM Thread Starter
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YJ springs on a CJ

Wondering if anyone has put YJ springs onto a CJ-7, what problems you might have run into, and if it is worth it. My brother is looking into putting 4 inch lift YJ srpings into one of his CJ-7s. I have heard it is fairly easy, just have to move the rear of the front spring hanger back.

Thanks on info

77 CJ-7 304, 85 CJ-7 4 inch lift, 33's, 258
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post #2 of (permalink) Old 04-10-2002, 04:34 PM
 
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Re: YJ springs on a CJ

Rear CJ springs are wider (2.5" vs. 2") than YJ springs, so you will also need new hangers and shackles in the rear. I haven't done the upgrade personally, but there are a few here who have, they might be able to shed more light on potential problems or drawbacks.
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post #3 of (permalink) Old 04-10-2002, 04:40 PM Thread Starter
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Re: YJ springs on a CJ

http://rubicon.off-road.com/jeep/tech/susp/cjsoa.html
According to this website they are the same width. Not sure personally, but thanks for the tip. I will have to see if what the YJ springs measure
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post #4 of (permalink) Old 04-10-2002, 04:45 PM
 
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Re: YJ springs on a CJ

I had it backwards. Here's a quote from that writeup:
<blockquote><font class="small">In reply to:</font><hr>

The rear springs used in CJs and YJs are the same width, so the rear springs bolt right in. The YJ front springs are a little longer and wider than CJ front springs. The fixed spring hanger for the CJs front spring is the correct width because the CJ front spring uses a wide bushing in the back. It is the shackle side of the CJ that is not compatible with the YJ front springs.

<hr></blockquote>
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post #5 of (permalink) Old 04-10-2002, 04:48 PM Thread Starter
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Re: YJ springs on a CJ

Thats what I thought. We are going to try the YJ springs cause from that article it seemed to be easy, but we are not doing the soa.

Thanks
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post #6 of (permalink) Old 04-10-2002, 08:08 PM
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Re: YJ springs on a CJ

Do it! This is the best way you can do a over the counter spring lift for two reasons. One is that the YJ springs will give you a much better ride due to the difference in spring rates. Second your lift will not only fit '76-86 CJ's, but it will fit '87-95 YJ's after your CJ rusts out! All you have to do is get new spring hangers for the front that are longer and new shackles. Check out <a target="_blank" href=http://www.jksmfg.com/>http://www.jksmfg.com/</a>. They make the parts you need that will bolt right on. I put this lift on my '80 CJ and really am impressed. The rear hangers of my front springs were welded on, so extending the front was the only way to go. You will have to fab up an extention to your frame channels to hold your front bumper on because the springs will stick out too far for it to mount back in the same holes. Any ?'s just ask.
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post #7 of (permalink) Old 04-10-2002, 08:46 PM Thread Starter
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Re: YJ springs on a CJ

Thanks for the info. My brother is going to do this lift in either his 83 cj-7 or his 79. I already have a 4 inch lift for my cj or I would do it. I did just pick up another cj-7 with a 304, maybe I will see how his goes and think about putting it in that one.

Thanks again
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