Front to Rear spring swap, what to use for fronts? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Front to Rear spring swap, what to use for fronts?

Bds fox ipf 2.0 racing series shocks now available at rockIntroducing MONSTALINER™ UV Permanent DIY Roll On Bed LineSpartan Lockers FREE SHIPPING Excellent Prices

Reply
Unread 06-21-2009, 06:54 PM   #1
95gc
Registered User
1995 ZJ 
 
Join Date: Dec 2006
Location: Cincinnati, OH
Posts: 55
Front to Rear spring swap, what to use for fronts?

I'm going to the pull and pay to get the front v8 zj springs for the rear of my 4.0. Are there any other springs out there that I might find in the junk yard to put in the front, or will I need to buy something new?

95gc is offline   Reply With Quote
Unread 06-21-2009, 07:06 PM   #2
LJ_Cool
Registered User
2006 LJ Wrangler 
 
Join Date: Sep 2004
Location: Bellevue
Posts: 381
you could get front springs from a lifted XJ, if you could tell it was lifted anyway, they also would lift your ZJ.

if you search some more, you may find some references to F150 springs too, but I don't have a link for you.
__________________
2006 TJ Unlimited (Midnight Blue #888)
75k- 2.5" lift, riding on 32's with terraflex rocker armor

Last edited by LJ_Cool; 06-21-2009 at 09:46 PM.. Reason: said TJ, meant ZJ
LJ_Cool is online now   Reply With Quote
Unread 06-22-2009, 10:30 AM   #3
RyanZJ
Registered User
1998 ZJ 
 
Join Date: Apr 2005
Location: Littleton, CO
Posts: 3,734
I used Rubicon Express 3.5" for mine and it sits pretty even with the V8 UpCountry springs in the rear. I'd guess overall I'm at around 4".
__________________
Ryan
'98 ZJ V8 Limited
'06 WK V8 Laredo
'51 CJ-3A

RyanZJ is offline   Reply With Quote
Unread 06-22-2009, 10:40 AM   #4
StellaTheZJ
Registered User
1996 ZJ 
 
Join Date: Jan 2009
Location: BC
Posts: 606
Your profile doesn't list your engine, but I'm guessing you must have a 4.0l or you wouldn't be hitting the wrecker for V8 springs.

How high do you want to go? If 3", put the V8 springs in the front with your BB, and your stock I6 springs in the rear.

If you want to go 4", put the V8s in the rear and all 4 of your BB spacers on the front. I know some people will probably post that they'd never go with 4" or spacers all around, but in the front it's just fine. The "bumpstop post" (or whatever it's called) off the "frame" is certainly long enough that 4" of spacers would never cause a problem.

I've gone to 3" with I6 front springs all around, and 3" spacers in the front. I tried the V8 springs in the rear, but they had more lift than I wanted and they were quite stiff, so I went with the I6 after all.

Last edited by StellaTheZJ; 06-24-2009 at 07:22 PM..
StellaTheZJ is offline   Reply With Quote
Unread 06-22-2009, 10:44 AM   #5
RyanZJ
Registered User
1998 ZJ 
 
Join Date: Apr 2005
Location: Littleton, CO
Posts: 3,734
Quote:
Originally Posted by StellaTheZJ View Post

If you want to go 4", put the V8s in the rear and all 4 of your BB spacers on the front. I know some people will probably post that they'd never go with 4" or spacers all around, but in the front it's just fine. The "spring post" (or whatever it's called) off the "frame" is certainly long enough that 4" of spacers would never cause a problem.
GTFO. A 3" BB is trouble. Stacking TWO 2" BBs is disaster waiting to happen.
__________________
Ryan
'98 ZJ V8 Limited
'06 WK V8 Laredo
'51 CJ-3A

RyanZJ is offline   Reply With Quote
Unread 06-22-2009, 10:50 AM   #6
xJoshxx
Registered User
2011 WK 
 
Join Date: Sep 2008
Location: Burlington, Kentucky
Posts: 5,397
Quote:
Originally Posted by StellaTheZJ View Post
Your profile doesn't list your engine, but I'm guessing you must have a 4.0l or you wouldn't be hitting the wrecker for V8 springs.

How high do you want to go? If 3", put the V8 springs in the front with your BB, and your stock I6 springs in the rear.

If you want to go 4", put the V8s in the rear and all 4 of your BB spacers on the front. I know some people will probably post that they'd never go with 4" or spacers all around, but in the front it's just fine. The "spring post" (or whatever it's called) off the "frame" is certainly long enough that 4" of spacers would never cause a problem.

I've gone to 3" with I6 front springs all around, and 3" spacers in the front. I tried the V8 springs in the rear, but they had more lift than I wanted and they were quite stiff, so I went with the I6 after all.
Wow how do you have a 120 post's? x2 Stacking SPACERS IS asking for SUPER trouble. do not listen to that guy. You sir Deserve a

__________________
Interested in Amsoil? Sold4" Hybrid lift TeraFlex coils IRO Adjustable LA's Jks tracbar 1.25spidertrax spacers 265/75/16 Dura-tracs
Quote:
Originally Posted by moPowered View Post
The SRt-8's are a liberty design.
2011 WK2 Laredo with ORA1
xJoshxx is offline   Reply With Quote
Unread 06-22-2009, 07:55 PM   #7
95gc
Registered User
1995 ZJ 
 
Join Date: Dec 2006
Location: Cincinnati, OH
Posts: 55
There is no way I would use double spacers. I was actually trying to go without spacers. I do have the 4.0 engine. I read that the V8 springs will give the rear about 3" lift, which is about what I'm going for. I want to clear 31" tires. I thought about these 3" spacers I found.

Last edited by 95gc; 06-23-2009 at 03:05 PM..
95gc is offline   Reply With Quote
Unread 06-23-2009, 03:10 PM   #8
95gc
Registered User
1995 ZJ 
 
Join Date: Dec 2006
Location: Cincinnati, OH
Posts: 55
So, has anyone used the spacers from Fat Bob's Garage?
95gc is offline   Reply With Quote
Unread 06-23-2009, 07:16 PM   #9
rooster51
Registered User
1997 ZJ 
 
Join Date: Dec 2008
Location: Virginia Beach
Posts: 1,601
NO. ive asked the same in the past & I heeded their advice. Trim the bottom portion of your front bumper & 31's will easily fit w/ a 2"BB
rooster51 is offline   Reply With Quote
Unread 06-23-2009, 08:06 PM   #10
InlandZJ
Registered User
1993 ZJ 
 
Join Date: Jun 2009
Location: Riverside
Posts: 22
I have in the past used Fat Bob's spacers. They are okay but you should just find springs to install up front. I did not like the spacers when I had them. Every time I turned there was a pop sound . I looked under the front and the springs were pushed down to were it would hit the metal next to were the spring saddle is. I think pucks suck my 2 cents.
InlandZJ is offline   Reply With Quote
Unread 06-24-2009, 07:39 PM   #11
StellaTheZJ
Registered User
1996 ZJ 
 
Join Date: Jan 2009
Location: BC
Posts: 606
I love that face palm!! Now then, instead of simply admonishing, could you please educate the ignorant (obviously me!) and explain why 3" spacers are "trouble," and why stacked spacers are a "disaster waiting to happen?" I currently have about 250,000kms, over 15 years, in two Jeeps (XJ & ZJ) on my 3" spacers. I bought them from a guy who was replacing them with... wait for it... 4" spacers ! Last time I saw that XJ, it had 13 years on it with that lift, but I can't vouch for the mileage. Keep in mind though mine are billet aluminum spacers, which were made up because custom turned aluminum spacers made by a machinist were (are?) cheaper than the poly versions sold online...

Seriously, I'm not sure what the general dislike of spacers is about, I've never seen any explanation of the opinion. I can only guess people worry about the spring shifting sideways, but it's securely located on the bumpstop post in the center of the spring - as is the spacer. If neither the springs nor the spacers can move, what is it that people are concerned with? Help me out Josh, Ryan? Any good pics of past carnage?

(OK, I think I'm ready for another face palm - or worse!)
StellaTheZJ is offline   Reply With Quote
Unread 06-24-2009, 08:08 PM   #12
vansskaterfreek
Registered User
1998 ZJ 
 
Join Date: Jul 2008
Location: ocean city, nj
Posts: 486
Quote:
Originally Posted by 95gc View Post
So, has anyone used the spacers from Fat Bob's Garage?
just got the from ebay like 2 months ago.... i think they were like $40 for all 4...the only problem i have is that the rears feel loose, but they said thats how that are supposed to be
__________________
1998 ZJ 5.9L 122k miles - DD, 242 swap, 3.5" RE, 32" BFG M/T, safari rack, roof-mounted lights, custom steel front bumper with hitch reciever, 10k winch :)
2004 WJ 4.7L 107k miles - her daily driver, 2" daystar BB with scorpion shocks.. not too bad! stuffed 265/65/17 General Grabber AT2'S
vansskaterfreek is offline   Reply With Quote
Unread 06-25-2009, 09:02 AM   #13
Bort62
Registered User
 
Join Date: Jan 2009
Location: Sunnyvale, Ca
Posts: 112
Quote:
Originally Posted by StellaTheZJ View Post
I love that face palm!! Now then, instead of simply admonishing, could you please educate the ignorant (obviously me!) and explain why 3" spacers are "trouble," and why stacked spacers are a "disaster waiting to happen?" I currently have about 250,000kms, over 15 years, in two Jeeps (XJ & ZJ) on my 3" spacers. I bought them from a guy who was replacing them with... wait for it... 4" spacers ! Last time I saw that XJ, it had 13 years on it with that lift, but I can't vouch for the mileage. Keep in mind though mine are billet aluminum spacers, which were made up because custom turned aluminum spacers made by a machinist were (are?) cheaper than the poly versions sold online...

Seriously, I'm not sure what the general dislike of spacers is about, I've never seen any explanation of the opinion. I can only guess people worry about the spring shifting sideways, but it's securely located on the bumpstop post in the center of the spring - as is the spacer. If neither the springs nor the spacers can move, what is it that people are concerned with? Help me out Josh, Ryan? Any good pics of past carnage?

(OK, I think I'm ready for another face palm - or worse!)

The problem w/ spacers larger then 2" is that there is not enough of the bump stop left at that point to secure the spring.

I suppose if you never flex it out, that may not be a problem, but springs falling out is a BAD thing.
__________________
___________
'98 Grand
'60 Ranchero
Bort62 is offline   Reply With Quote
Unread 06-25-2009, 09:11 AM   #14
RyanZJ
Registered User
1998 ZJ 
 
Join Date: Apr 2005
Location: Littleton, CO
Posts: 3,734
Sorry it took so long for me to get back to this. Bort is right, up front you don't have much of the bumpstop post left with 2.25" spacers. With 3 or 4" you wouldn't have anything to hold the spring in place! Forget wheeling with a setup like that...
__________________
Ryan
'98 ZJ V8 Limited
'06 WK V8 Laredo
'51 CJ-3A

RyanZJ is offline   Reply With Quote
Unread 06-25-2009, 09:23 AM   #15
melloyello
Registered User
1995 ZJ 
 
Join Date: Jan 2009
Location: somewhere over the rainbow
Posts: 294
Just get the 3.5" springs from IRO and be done w/ it. I wish I would have. Instead I am riding around a hair low in the rear and you can tell those front v8 springs are not made for the rear by the way they ride.
Do it right the first time.
melloyello is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.