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post #1 of 31 Old 09-01-2014, 10:25 AM Thread Starter
Gungnir
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front spring issues

hey all, i got a 90 yj with SOA, 8.8, running 35's and my front springs keep turning them self into an S shape. Im on my 4th set of springs in 3 months, this time im useing hd springs, they have been on for about 2 weeks and im starting to feel it happen again. what could be causing this.
the first 3 sets of springs were stock and no idea of age or condition, the hd springs were only a year old when i got em and half that year was spent sitting on a shelf in a garage.


the check engine light and coolant sensor bad warning on my ZJ arnt on. I think my jeep might be broken :(
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post #2 of 31 Old 09-01-2014, 10:48 AM
1tuffyj
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What kind of power are you running? How hard do you wheel? Is it shackle reversed?

the pressure makes us stronger, the struggle makes us hunger, the hard lesssons make the difference, and the difference makes it worth it.
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post #3 of 31 Old 09-01-2014, 10:52 AM Thread Starter
Gungnir
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I got a 4 banger, I wouldnt consider my wheeling to hard not stock friedly but i dont push it to its limits, and the shackles arnt reversed.

the check engine light and coolant sensor bad warning on my ZJ arnt on. I think my jeep might be broken :(
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post #4 of 31 Old 09-01-2014, 12:50 PM
89yjislanderr
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did you do the soa or did a shop do it? that'd be the first thing i'd visit.
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post #5 of 31 Old 09-01-2014, 10:33 PM
Yj350tbi
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Longer spring perch might help. And a traction bar. Maybe to long of shackles? Is this a bolt on spring over?
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post #6 of 31 Old 09-01-2014, 10:43 PM
mike134
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can you show a picture of your spring set up? maybe with the wheel off?
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post #7 of 31 Old 09-02-2014, 11:52 AM
timatoe
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Is it possible you're inverting the shackle? Like this......





If so, a set of boomerang shackles will likely stop that.

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post #8 of 31 Old 09-05-2014, 03:26 PM Thread Starter
Gungnir
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My shckles are good, my front srpings wrap every time I put it in 4 wheel drive
This didnt always happen, my cad went so I did the diy posi lock, then the springs. Put new springs on went out wheeling diy posi broke, I locked the collar so I could get out of the bush and my new used springs wrapped, picked up s8me hd springs and installed the posi loc from rugged ridge, put it in 4xr turned on pavment and they wrapped again.

the check engine light and coolant sensor bad warning on my ZJ arnt on. I think my jeep might be broken :(
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post #9 of 31 Old 09-06-2014, 06:39 AM
Mike Romain
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Quote:
Originally Posted by Gungnir View Post
My shckles are good, my front srpings wrap every time I put it in 4 wheel drive
This didnt always happen, my cad went so I did the diy posi lock, then the springs. Put new springs on went out wheeling diy posi broke, I locked the collar so I could get out of the bush and my new used springs wrapped, picked up s8me hd springs and installed the posi loc from rugged ridge, put it in 4xr turned on pavment and they wrapped again.
Do you by any chance have mismatched gear ratios? I mean, running in 4x4 on pavement is just plain asking for something to explode, usually a u-joint, but I have seen a t-case blown in half on a Cherokee from this. Axle wrap more implies gear ratios in my mind.

Mike
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post #10 of 31 Old 09-06-2014, 08:03 AM Thread Starter
Gungnir
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Ill have to check that out, I know my 8.8 has 4 10 gears I just assumed thats whats in the front.

the check engine light and coolant sensor bad warning on my ZJ arnt on. I think my jeep might be broken :(
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post #11 of 31 Old 09-06-2014, 08:11 AM
Steve707
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Quote:
Originally Posted by Mike Romain View Post
Do you by any chance have mismatched gear ratios? I mean, running in 4x4 on pavement is just plain asking for something to explode, usually a u-joint, but I have seen a t-case blown in half on a Cherokee from this. Axle wrap more implies gear ratios in my mind.
Wouldn't that destroy his tcase?


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Originally Posted by Gungnir View Post
Ill have to check that out, I know my 8.8 has 4 10 gears I just assumed thats whats in the front.
Do you have a 4 or 6 cylinder engine?
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post #12 of 31 Old 09-06-2014, 08:37 AM Thread Starter
Gungnir
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I got a 4 cyl.

the check engine light and coolant sensor bad warning on my ZJ arnt on. I think my jeep might be broken :(
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post #13 of 31 Old 09-06-2014, 08:39 AM
Steve707
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Your front axle should have the same gear ratio then. And I'm pretty sure you would have broken something if they were different ratios unless you happened to have the right tire size difference for the gear difference.
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post #14 of 31 Old 09-06-2014, 09:09 AM Thread Starter
Gungnir
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I dont know if this helps but I went to disengage my 4 wheel drive and it wouldnt disengage, I popped the back off the cad and couldnt slide the colar over. I put it in natural aand went to push it and it wouldnt go anywhere. It felt like it was still in gear. I jacked up the front end and the driver tire had built up energy in or somthing because it really spun soon as the pressure was taken off it.

the check engine light and coolant sensor bad warning on my ZJ arnt on. I think my jeep might be broken :(
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post #15 of 31 Old 09-06-2014, 09:22 AM
Mike Romain
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Quote:
Originally Posted by Gungnir View Post
I dont know if this helps but I went to disengage my 4 wheel drive and it wouldnt disengage, I popped the back off the cad and couldnt slide the colar over. I put it in natural aand went to push it and it wouldnt go anywhere. It felt like it was still in gear. I jacked up the front end and the driver tire had built up energy in or somthing because it really spun soon as the pressure was taken off it.
Yes, it does this when driving on pavement in 4x4 just before a u-joint or t-case explodes from the stress built up. When you turn, the front wheels travel farther than the back ones so one tire has to scuff the ground to compensate when the front and back driveshafts are locked into 4x4. That is why you are only supposed to use 4x4 on dirt or snow.

Sometimes driving in reverse and turning can unwind things so it will release, but sometimes you have to jack up a wheel.

If your gear ratios are off, this is way worse. Are you sure the 8.8 is 4.10? That makes for a slight mis match because the fronts are 4.11 if I remember right. Not enough to wrap things, but sure enough to make it worse on pavement .

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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