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  #31  
Old October 17th, 2020, 12:49
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Re: Rear Suspension Issues

Yes that's the one but you never did take a pic of the rig. By your description your springs aren't carrying the weight.
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  #32  
Old October 17th, 2020, 13:17
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Rear Suspension Issues

Mine rides alittle softer with longer shackles at .
My jeep rides pretty darn good with flat springs.

Got to thinking tht your bolt isn't hitting. With a flat spring it cn only get shorter under compression and droop. Its pulling the shackle away from your frame. Pulling twrds the front end.

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  #33  
Old October 17th, 2020, 13:19
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Rear Suspension Issues

Whats this mark from?


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  #34  
Old October 17th, 2020, 14:30
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Rear Suspension Issues

Good find. The other side has 2, at each edge of the spring. Looks like a bit of a rub. Low miles on this setup, 50mi. off-road or might be more apparent.

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  #35  
Old October 17th, 2020, 15:08
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Rear Suspension Issues

The rear bolt on both bumpstops snapped off, very difficult to drill bolt for ez out. No torch. Wondering if it would be ok to move both stops back an inch (or whatever the minimum I can get away with). Would just drill new holes and use 5/16-18 nurserts to mount.

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  #36  
Old October 17th, 2020, 15:23
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Re: Rear Suspension Issues

Since those leaf springs are saggy already, extended shckles will only accelerate the sagging.


Quote:
Originally Posted by Evan03 View Post
Whats this mark from?
Thr shackle hitting there. There are likely marks on the stock bumper bolts coming thru the rear crossmember also.

Those leaf spring look a bit saggy. IDK what they are rated at, but you may have better performance with leaf springs that have a higher spring rate, and/or higher load capacity.


Spring Rate: The amount of force it takes to compress the spring 1 inch expressed in lbs/in. The lower the rate, the softer the spring.

An add-a-leaf can increase the leaf spring carrying capacity, and restore some of the arch. . Adding a leaf to your leaf springs will raise the rear slightly depending on the donor leaf, and the recipient leaf pack on your vehicle, and may affect your ride to feel more rough or stiff.
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  #37  
Old October 17th, 2020, 15:31
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Re: Rear Suspension Issues

Quote:
Originally Posted by Evan03 View Post
Mine rides alittle softer with longer shackles at .
My jeep rides pretty darn good with flat springs.

Got to thinking tht your bolt isn't hitting. With a flat spring it cn only get shorter under compression and droop. Its pulling the shackle away from your frame. Pulling twrds the front end.

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Same for the shackle hitting the bumper bolts.....
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  #38  
Old October 17th, 2020, 15:52
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Re: Rear Suspension Issues

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Originally Posted by Tim_MN View Post
Since those leaf springs are saggy already, extended shckles will only accelerate the sagging.




Thr shackle hitting there. There are likely marks on the stock bumper bolts coming thru the rear crossmember also.

Those leaf spring look a bit saggy. IDK what they are rated at, but you may have better performance with leaf springs that have a higher spring rate, and/or higher load capacity.


Spring Rate: The amount of force it takes to compress the spring 1 inch expressed in lbs/in. The lower the rate, the softer the spring.

An add-a-leaf can increase the leaf spring carrying capacity, and restore some of the arch. . Adding a leaf to your leaf springs will raise the rear slightly depending on the donor leaf, and the recipient leaf pack on your vehicle, and may affect your ride to feel more rough or stiff.
No factory bumper (JCR) but will look more closely for any interference.

These are OME from DPG and he told me the ride would be superior. P/N on the spring is CS033R but doesn't indicate 'A' or 'B' or whatever. Should be HD.

I'm willing to redo the whole spring setup but should figure out what's happening here first I suppose. I did mark the shocks at normal stance, full extend and full compress so when things go back together I can flex it and see where it's at. Also pulled the three 1/2" bump stop spacers off. The passenger side, with a bumpstop, had register marks from the bump on the spacers.
Had a pretty good load in the back including, JCR swing away spare tire bumper with high-lift and 2 rotopax mounted. Plus, a load of recovery gear, fluids, etc. in the cargo area. That's what I want to carry when I get back out there so need the rear suspension to handle that.

Appreciate the patience and input.
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  #39  
Old October 17th, 2020, 16:07
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Rear Suspension Issues

Only pic I could find with this setup. Yup, bit of a grade. Not sure if the full load was in the back.

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  #40  
Old October 17th, 2020, 17:09
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Re: Rear Suspension Issues

The one factory bumpstop is 3". Aftermarket in hand are 4" and looks like too much. Only 1.5" from spring to stop while sitting on stand under the axle. Man, I hope I learn something through all this.
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Last edited by NOTNSUV; October 17th, 2020 at 18:46.
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  #41  
Old October 17th, 2020, 18:29
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Re: Rear Suspension Issues

You can remove spacers from the bump stop plate.....
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  #42  
Old October 17th, 2020, 18:44
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Re: Rear Suspension Issues

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Originally Posted by TRCM View Post
You can remove spacers from the bump stop plate.....
Already did that. 4" bumpstop, 1.5" clearance to plate mount w/o any spacers.
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  #43  
Old October 17th, 2020, 21:27
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Re: Rear Suspension Issues

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Originally Posted by NOTNSUV View Post
Already did that. 4" bumpstop, 1.5" clearance to plate mount w/o any spacers.

Well, at 3.5" I wouldn't even use those plates.......


I'm @ 3.75"- 4" of lift on mine, running 32" tires on 17" moabs....and I do have an extended bumpstop up top, but still no plate, just the stock configuration.....


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  #44  
Old October 17th, 2020, 21:33
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Re: Rear Suspension Issues

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Originally Posted by TRCM View Post
Well, at 3.5" I wouldn't even use those plates.......


I'm @ 3.75"- 4" of lift on mine, running 32" tires on 17" moabs....and I do have an extended bumpstop up top, but still no plate, just the stock configuration.....


,
Right on! 3.5"/33s/trimmed fenders with Rusty's steel. Thanks.

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  #45  
Old October 18th, 2020, 08:00
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Re: Rear Suspension Issues

The factory bumper bolts are very likely hitting the shackle or spring eye, they are all trimmed flush to head of the weld nut on my XJ. The leaf spring eye bolts are installed incorrectly, the threads should be pointing out.

Bumpstop length is determined by flexing the suspension until the tires make unwanted contact. The bump stop plates on your axle will probably make your bump stops somewhat custom and they will likely need to be shorter than extended bump stops using the stock locations/configuration.


An add-a-leaf will be the simplest and lowest cost method to add some load capacity and some additional rear suspension lift.


My 2000 is more or less level with all my off-road gear, bumpers and skid plates, tools, and spare parts.



.


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Quote:
Originally Posted by bimmerjeeper


Go ahead and slam the liftgate down on a blanket, and see how long you are laughing.

Last edited by Tim_MN; October 18th, 2020 at 08:09.
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