Leaf spring nightmare - Page 3 - JeepForum.com
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post #31 of 42 Old 06-15-2021, 12:41 PM Thread Starter
RARECJ8
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a hack fix can be grind off the RR shackle hanger and outboard it to sit directly over the spring eye. But that is not addressing the core problem of why... it is tempting tho...


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post #32 of 42 Old 06-15-2021, 12:44 PM
Fourtrail
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How are your airbag mounts? one/both of them twisted and the bags are pushing the axle to the side/forward to the pass side? you said everything goes back into alignment when you pick it up and the bags would have no push, then when you took a drive and hit a few bumps, the bags would start to self align and push the axle over?

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post #33 of 42 Old 06-15-2021, 12:53 PM Thread Starter
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How are your airbag mounts? one/both of them twisted and the bags are pushing the axle to the side/forward to the pass side? you said everything goes back into alignment when you pick it up and the bags would have no push, then when you took a drive and hit a few bumps, the bags would start to self align and push the axle over?
they sure are twisted but completely deflated. no load, just hanging there. lift to full droop the P side still not completely vertical...

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post #34 of 42 Old 06-15-2021, 01:05 PM
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If the driver side is vertical, kinda makes you wonder what would happen if you move the passenger side axle mount over a 1/4"

Wouldn't fix the problem with the hub to hub distance.

Almost seems like you don't have the same length springs on each side but I'm sure you checked that already


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post #35 of 42 Old 06-15-2021, 01:18 PM
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RareCJ8, what is your rear shackle angle? Looking at most of the conversions on Toyota trucks, they seem to be shooting for about 45 degrees back and you look to be a long way from that. You currently look to be a full on compression shackle and that might be contributing to the shackles wanting to flop over to the side. At 45 degrees you are getting more into a tension shackle and not putting as much vertical pressure on the shackle allowing it to shift/flop to the side maybe?

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post #36 of 42 Old 06-15-2021, 02:24 PM Thread Starter
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this weekend get the joy of tearing it all apart and look for any issues, especially P side spring perch. Look for wallowed out center pin hole. front and rear of that hole are two voids cast into the axle perch that unless one is very carefully watching its easy for the center pin to drop into a void and not be exactly in the center hole. recall we were careful at this stage but have nothing to lose pulling it open for a look anyway. or stab that 1" offset plate in and see if there is a difference pulling P side wheel back into correct position... right now not ruling anything out. My buddies are all on rubicon this week while i get to be here with u dudes, lol.

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post #37 of 42 Old 06-15-2021, 08:23 PM
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Consider pressing or drilling out the stock bushings in the leafs for some poly or Kevlar reinforced poly bushings with sleeves. I think I either used skysoffroaddesign or offroaddesign when I did mine. Both offer different kinds.
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post #38 of 42 Old 06-16-2021, 12:02 PM
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You missing something, You should go back and look at a Toyota, Airbags on one end and Spherical on the other, You are not going to keep the *** end under the Jeep. Built a Load of Rear suspensions in my Life, You are not going any where with that Setup doesn't matter how much Money you throw at it. Without a Panhard Bar or some kind of Track Bar to keep that Axle Centered you going No where with that setup, Which I believe you already finding that out. P.S. I don't know how many Magazine Covers your Shop has Graced, If they look at that Mess and Say they Don't see a Problem, I'm Glad they are Parked for the Photo Shoot...........

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post #39 of 42 Old 06-16-2021, 12:23 PM
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Just for Giggles , Did a Little research, Every Install I see has a Traditional Hard rubber mount on one end of the Spring. Thats what's keeping the Axle in Place.

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post #40 of 42 Old 06-16-2021, 01:21 PM
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You missing something, You should go back and look at a Toyota, Airbags on one end and Spherical on the other, You are not going to keep the *** end under the Jeep. Built a Load of Rear suspensions in my Life, You are not going any where with that Setup doesn't matter how much Money you throw at it. Without a Panhard Bar or some kind of Track Bar to keep that Axle Centered you going No where with that setup, Which I believe you already finding that out. P.S. I don't know how many Magazine Covers your Shop has Graced, If they look at that Mess and Say they Don't see a Problem, I'm Glad they are Parked for the Photo Shoot...........
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Just for Giggles , Did a Little research, Every Install I see has a Traditional Hard rubber mount on one end of the Spring. Thats what's keeping the Axle in Place.



OP has rubber bushings in the leading end of the spring. Only place that has orbitals is in the shackle end. airbags are centered over the axle for weight capacity, nothing to do with locating the springs.

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post #41 of 42 Old 06-16-2021, 04:57 PM
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Did one of your shocks freeze up? It makes no sense that both drivers and passenger shackled are twisting same direction unless something is pushing to passenger side. What new stuff was added recently?

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post #42 of 42 Old 06-17-2021, 08:41 PM Thread Starter
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deeper investigation reveals LF spring is bent and trashed. SOA and shackle reverse is a bugger. LF 1" higher than PF side. Yanking those and adding rubicon express 6 leaf 1.5" SOA YJ pax. then we re measure. and taking air bags off line for a re assessment. and pull apart rear spring perch to verify all pins in right location. then crack a cold PBR. or 3
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