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  #1  
Old October 9th, 2017, 21:32
chickenbot chickenbot is offline
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Mystery spring

I got a pair of them off Craigslist for $50. Listing said they are 3" xj springs. Any thoughts?


Last edited by chickenbot; October 9th, 2017 at 21:40.
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  #2  
Old October 9th, 2017, 21:34
chickenbot chickenbot is offline
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Re: Mystery spring


Last edited by chickenbot; October 9th, 2017 at 21:41.
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  #3  
Old October 9th, 2017, 21:39
lazyxj's Avatar
lazyxj lazyxj is offline
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Re: Mystery spring

No pics!
It remains a mystery.
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Both Cherokees are still Real XJs http://www.naxja.org/forum/showthrea...hlight=real+XJ
2001 Sport, 4 " lift, 33 X 10.50 KM2, DB, R.E.-UCA, JKS-LCA, ACOS, SYE, 4.56-8.25 TruTrac-D-30-E-Locker both with alloy shafts, Hidden M8000 winch, Vanco/Sport-Trac front and ZJ rear disc brakes, Frame stiffeners, Lots of armor, Towing baseplate. http://www.flickr.com/photos/lwade/c...7603770130683/
1997 Country, Mostly stock, 2" lift, Engine mods, Towing baseplate
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  #4  
Old October 9th, 2017, 21:42
chickenbot chickenbot is offline
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Re: Mystery spring

Found a pic site that worked
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  #5  
Old October 10th, 2017, 09:19
burntkat burntkat is offline
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Re: Mystery spring

Get a micrometer and measure the wire size, then measure the coil ID, coil OD, and free length.

Go here: https://www.thespringstore.com/sprin...alculator.html and plug those numbers in.

Crossref suspected springs in your favorite LAPS computer system. they will give you the spring rate. If they don't, find a new favorite LAPS. I recommend O'reilly, personally.

This will get you as accurate a guess as any, and more than most.

NOONE is going to be able to identify the application from your pics. There is no tag to read, and the only hope we'd have is if they were powdercoated red- in which case they'd be Skyjacker, and best avoided if you have any option.

As is, these could be from a 70's Cadillac for all we know.
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-89 S-10: SAS, D44s front/rear. 5.7L V8. 700R4 with 4L60E upgrades. Built in my driveway.
-90 XJ 4.0, AW4, 231J: Clayton's longarms, RE 5.5" coils, hybrid 6" leaf pack, 33/12.50/15" MTs, Rancho 99012s and 99624s, Tera HD SYE, custom sliders, BW flares. Next: finish front, build rear bumpers, Dana 44's front and rear.
-94 ZJ: Budget boost, 31's. The wife's mall crawler. She's gotten inchitis over my S10 though...
-97 XJ: Son's DD. 4" lift, ACOS, completely new suspension with upgrades.
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  #6  
Old October 10th, 2017, 11:05
chickenbot chickenbot is offline
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Re: Mystery spring

With that site it says that the spring rate is 260 lbs/in. I'm going to keep searching to see which springs meet that criteria.
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  #7  
Old October 10th, 2017, 13:18
burntkat burntkat is offline
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Re: Mystery spring

The parts system at Oreilly's had that information in the detailed description for each spring. Take the measurements you took down (mainly free length and OD) and the spring rate and that will give you a good idea of what the fitment was.

As a complete RESWAG, I'm thinking it may be a ZJ Upcountry fitment.
__________________
-89 S-10: SAS, D44s front/rear. 5.7L V8. 700R4 with 4L60E upgrades. Built in my driveway.
-90 XJ 4.0, AW4, 231J: Clayton's longarms, RE 5.5" coils, hybrid 6" leaf pack, 33/12.50/15" MTs, Rancho 99012s and 99624s, Tera HD SYE, custom sliders, BW flares. Next: finish front, build rear bumpers, Dana 44's front and rear.
-94 ZJ: Budget boost, 31's. The wife's mall crawler. She's gotten inchitis over my S10 though...
-97 XJ: Son's DD. 4" lift, ACOS, completely new suspension with upgrades.
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  #8  
Old October 10th, 2017, 13:57
chickenbot chickenbot is offline
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Re: Mystery spring

The gentleman I bought it from said tried to put it in his ZJ and only netted 1.75" lift.
https://dallas.craigslist.org/ndf/pt...319018781.html
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  #9  
Old October 10th, 2017, 15:03
burntkat burntkat is offline
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Re: Mystery spring

Quote:
Originally Posted by chickenbot View Post
The gentleman I bought it from said tried to put it in his ZJ and only netted 1.75" lift.
https://dallas.craigslist.org/ndf/pt...319018781.html
Which would be about what an upcountry spring would give you...
__________________
-89 S-10: SAS, D44s front/rear. 5.7L V8. 700R4 with 4L60E upgrades. Built in my driveway.
-90 XJ 4.0, AW4, 231J: Clayton's longarms, RE 5.5" coils, hybrid 6" leaf pack, 33/12.50/15" MTs, Rancho 99012s and 99624s, Tera HD SYE, custom sliders, BW flares. Next: finish front, build rear bumpers, Dana 44's front and rear.
-94 ZJ: Budget boost, 31's. The wife's mall crawler. She's gotten inchitis over my S10 though...
-97 XJ: Son's DD. 4" lift, ACOS, completely new suspension with upgrades.
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  #10  
Old October 10th, 2017, 19:28
Green XJ Jeep Green XJ Jeep is offline
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Re: Mystery spring

ZJ springs in good condition give 1 inch on an XJ. So if it gave the ZJ 1.75 it will give the XJ 2.75.
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  #11  
Old October 11th, 2017, 07:31
burntkat burntkat is offline
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Re: Mystery spring

Quote:
Originally Posted by Green XJ Jeep View Post
ZJ springs in good condition give 1 inch on an XJ. So if it gave the ZJ 1.75 it will give the XJ 2.75.
It's much more complex than that. You have to take spring rate, the engine in the vehicle it came from, etc, into account.

but yes, it's a decent ballpark.
__________________
-89 S-10: SAS, D44s front/rear. 5.7L V8. 700R4 with 4L60E upgrades. Built in my driveway.
-90 XJ 4.0, AW4, 231J: Clayton's longarms, RE 5.5" coils, hybrid 6" leaf pack, 33/12.50/15" MTs, Rancho 99012s and 99624s, Tera HD SYE, custom sliders, BW flares. Next: finish front, build rear bumpers, Dana 44's front and rear.
-94 ZJ: Budget boost, 31's. The wife's mall crawler. She's gotten inchitis over my S10 though...
-97 XJ: Son's DD. 4" lift, ACOS, completely new suspension with upgrades.
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  #12  
Old October 11th, 2017, 08:18
chickenbot chickenbot is offline
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Re: Mystery spring

The shocks that came with it had a 658702 part number on them that I tracked down to be a rough country shock. I haven't been able to find out which lift it went to but my suspicion is that it goes to a 3" lift kit of theirs.
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  #13  
Old October 11th, 2017, 10:16
Green XJ Jeep Green XJ Jeep is offline
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Re: Mystery spring

Quote:
Originally Posted by burntkat View Post
It's much more complex than that. You have to take spring rate, the engine in the vehicle it came from, etc, into account.

but yes, it's a decent ballpark.
I should have said v8 ZJ. But when it comes to static height it really isnt more complex.
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