CJ Rear shackle hanger problem - JeepForum.com
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post #1 of 21 Old 03-27-2020, 08:58 AM Thread Starter
Facendaw
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CJ Rear shackle hanger problem

I have a 1977 CJ-5 that has virtually no spring action in the rear. Can someone advise if perhaps my rear shackle hangers were installed backwards.



Photo #1 is the little joker in question. Mine is installed with the eye towards the rear.
Photo #2 - The shackle is bumped up right against a steel "C" channel, which I am assuming is the rear bumper, thus no spring action. Just beside it you can see someone sliced thru that channel to install the bumper hitch.
Photo #3 - just an outside view of the C channel I am referring to.
Photo #4 - a friends fully stock 1979 CJ-5, shows his hanger had the eye mounted towards the front. Perhaps that is how it was done just in 1979, I don't know.
Photo #5 - (this pic taken on opposite side) I did try reversing the hanger with the eye towards the front. All that happened was the shackle lays nearly flat that way. Mine came with 5" shackles so I bought a pair of stock 3" and they wouldn't fit at all.


Should I put the shackle hangers back towards the rear and just cut a slot from the bottom lip of that C channel?

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post #2 of 21 Old 03-27-2020, 09:48 AM
BrutusBlue
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Longer than stock leaf springs?
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post #3 of 21 Old 03-27-2020, 10:02 AM
Cutlass327
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That's what it looks like, someone put longer springs on.

Are the wheels centered in the OEM wheel well opening? Maybe they wanted to move the axle back a little. There's a chart from a Cherokee forum that has the different lengths of leaf springs, may help ID the donor vehicle. The Dakota had off-center axle pins in the springs, and a little longer, so the are used at times to move an axle.

Rick

1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy


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post #4 of 21 Old 03-27-2020, 11:19 AM
StoneTower
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You could stretch a string (and mark it) or a tape measure and get a reading on your friend's stock spring length center of spring eye to center of spring eye. Do the same for your Jeep. That will be a good starting point to tell you if your springs are different than stock. Like was said above, you probably have a different spring than stock.

That rear bumper that was sliced (from the picture, it looks like they did a nice job notching it) is actually the rear crossmember of the frame. It is a very structural part of the frame. You need to figure a better way to mount that hitch and have someone repair the notches the previous owner took it upon himself to cut into it. Several companies make brackets that tie the rear crossmember to the frame.

https://www.google.com/search?q=cj5+...ih=687&biw=960

If you had a set of heavy duty brackets installed, you could use a piece of heavy plate like your friend has mounted to his rear crossmember and you could have someone weld your hitch to that heavy plate. Just be glad the previous owner did not own a plasma cutter
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post #5 of 21 Old 03-27-2020, 03:24 PM
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One thing you may look into also are the curved shackles. It would allow them to curve around the crossmember.

I highly recommend Jim1611's products, everything I have received from him is well worth it. He is also a member here, so you're helping out a member and fellow Jeeper. I was just talking to him about other parts, he was saying he was going to be offering his machined hangers at 10% off the regular price with free shipping. Full hanger set or just front or rear.

http://www.crabtreetool.com/Jeep%20P...rder-form.html

Rick

1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy


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post #6 of 21 Old 03-27-2020, 03:27 PM Thread Starter
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I had wondered about that spring appearing too long also. I can't get over to my friends place to examine his and measure it at the moment. They are in their upped 70's and don't want to risk it, but that seems a logical next move.

I looked back at that cross member and see now that it isn't just an addition piece of metal. Once I figure out what to do next with this I may just replace it. Thanks a lot guys.
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post #7 of 21 Old 03-27-2020, 05:13 PM
StoneTower
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If there is no other damage to the crossmember, find someone with a mig welder who knows how to weld and have them use a copper backer and fill it full of weld and grind it smooth. You probably want someone with a bigger 240v welder and not the 120V Home Depot variety. That crossmember is welded and maybe riveted in and probably require the body of the Jeep to be removed to weld a new one on properly.

If your friend is able bodied, have hi get a piece of string and get a helper or a magnet and stretch the string between eyes and measure the distance. This is a great time to work on your jeep if you can get the parts you need.

Maybe someone here with a same year CJ5 can get you the measurement.

Good luck and stay safe.

Quote:
Originally Posted by Facendaw View Post
I had wondered about that spring appearing too long also. I can't get over to my friends place to examine his and measure it at the moment. They are in their upped 70's and don't want to risk it, but that seems a logical next move.

I looked back at that cross member and see now that it isn't just an addition piece of metal. Once I figure out what to do next with this I may just replace it. Thanks a lot guys.
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post #8 of 21 Old 03-27-2020, 06:40 PM
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Try these. The imagur link is larger and clearer.



https://www.cherokeeforum.com/attach...af_springs.jpg


https://imgur.com/zLhAg

Rick

1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy


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post #9 of 21 Old 03-27-2020, 06:59 PM
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Lets try this
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post #10 of 21 Old 03-27-2020, 07:31 PM Thread Starter
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Thanks 327. So these are the stock lengths.
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post #11 of 21 Old 03-28-2020, 04:01 AM
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Picture #2 shows the Shackle Hanger bolted on the wrong way, at least if it was a CJ-7. Shackle eye should face the front and the mounting bolts towards the rear.

Have your mounting bolts been relocated by one hole due to that hitch assembly?
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post #12 of 21 Old 03-28-2020, 07:50 AM
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Here's a reference for you to compare against the springs you now have. My factory rear CJ7 springs are 46 1/2" from one eye to the other. They are off my Jeep so they're relaxed but you can measure as I did, by laying the tape measure flat on the bottom of the spring. Your springs seem to be more flat than what I'm seeing to seeing too. Were they mine I'd probably take them off and replace them with YJ style springs. You could put allot of effort into extending the rear hangers and still not end up with much.

And yes, as Cutless327 mentioned my spring hangers are 10% off with free shipping. Thanks Rick!
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post #13 of 21 Old 03-28-2020, 08:06 AM
Matt80cj
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A friend of mine had the same problem but his was front and back. The springs sat on the frame and had no movement. We determined that the springs were lift springs that flattened out (ie sagging) real bad. During a mild trail run he broke a front hanger and the spring moved even further forward than the other side but stayed touching the frame. Just my 2 cents.


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post #14 of 21 Old 03-29-2020, 04:30 PM Thread Starter
Facendaw
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Keith, I checked for a hole more towards the rear. I did find one hole towards the rear, but it only went thru the bottom of the frame, I could see no matching hole thru the upper part. While I was under there I measured straight eye, to eye and it was 44". I also strung a wire from the middle of the shackle bolt to the middle of the axle housing and that was about 22 1/2". It seems that part of the spring matches factory specs.

Snapped a couple of pics to get opinions on if it may too flattened out. The Jeep isn't jacked up, so the spring in the pics is under normal load.
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post #15 of 21 Old 03-30-2020, 03:23 AM
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Quote:
Originally Posted by Facendaw View Post
Keith, I checked for a hole more towards the rear. I did find one hole towards the rear, but it only went thru the bottom of the frame, I could see no matching hole thru the upper part.

What do you mean by " I could see no matching hole thru the upper part"?


I don't know the '77 model year CJ-5 frame details but later years the Shackle Hangers are bolted to the frame by welded nuts inside the lower portion of the frame. There are no through holes.
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