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rear end sag

Old 02-25-2011, 04:55 PM
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rear end sag

ok so i had the typical rear end sag in my 86 runner. i bought new leaf springs and put the ball joint spacers in the front add a leaf in the rear and pro comp shocks all around but the front wheel wells have 9.5 inches from top of the tire to wheel well and 6.5 in the rear. why is the front still 3" higher then the rear. and how can i resolve this issue
Old 02-25-2011, 05:14 PM
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Your leafs are probably shot and the aal might not enough be doing anything?

Search "Zuk Mod" here on the forums
Old 02-25-2011, 05:21 PM
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first off the rear fenders are cut 2 inches lower. your rear tires might be worn moer than the front. the AAL probably didnt give you all the lfit it was supposed to because of your old worn out springs, but hey, you might know some of this if you tried searching...
Old 02-25-2011, 05:22 PM
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did you replace your leaf springs with factory leaf springs? cause if you did you would have fixed the sag but just brought it back up to the stock height. i would also recommend the zuk mod
Old 02-25-2011, 05:30 PM
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Originally Posted by sebastianholmes
first off the rear fenders are cut 2 inches lower. your rear tires might be worn moer than the front. the AAL probably didnt give you all the lfit it was supposed to because of your old worn out springs, but hey, you might know some of this if you tried searching...
i dont have worn out springs i put new ones on, but hey, you have known this if you tried reading my post. im looking for help not an inter net tuff guy you ass.
Old 02-25-2011, 05:34 PM
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Originally Posted by bobby_duce
did you replace your leaf springs with factory leaf springs? cause if you did you would have fixed the sag but just brought it back up to the stock height. i would also recommend the zuk mod
yeah i did buy stock springs, but i thought the add a leaf would help lift it, but i will probably put 2.5" extended shackles on it to help level it out some. thank you for your help.
Old 02-25-2011, 05:48 PM
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anywho wheres the pictures of your rig?
Old 02-25-2011, 05:54 PM
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Originally Posted by kharris
ok so i had the typical rear end sag in my 86 runner. i bought new leaf springs and put the ball joint spacers in the front add a leaf in the rear and pro comp shocks all around but the front wheel wells have 9.5 inches from top of the tire to wheel well and 6.5 in the rear. why is the front still 3" higher then the rear. and how can i resolve this issue
Originally Posted by skoti89
Your leafs are probably shot and the aal might not enough be doing anything?

Search "Zuk Mod" here on the forums
Originally Posted by sebastianholmes
first off the rear fenders are cut 2 inches lower. your rear tires might be worn moer than the front. the AAL probably didnt give you all the lfit it was supposed to because of your old worn out springs, but hey, you might know some of this if you tried searching...
Seriously People: it clearly stated that he put on new rear springs. READ.
Old 02-25-2011, 06:17 PM
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Originally Posted by kharris
i dont have worn out springs i put new ones on, but hey, you have known this if you tried reading my post. im looking for help not an inter net tuff guy you ass.
did you try reading the rest of my post? i gave you two more possibilites. i AM helping you. there are tons of threads on this very forum about rear end sag on these 4runners and probably thousands all over the web, google is your best friend. another thing could be that your torsions are cranked up and instead of the rear sagging the front is just sitting too high. pics would be very helpful. does it look like its sitting level? you should measure from the rim to the fender not from the tire.
Old 02-25-2011, 07:13 PM
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Originally Posted by sebastianholmes
did you try reading the rest of my post? i gave you two more possibilites. i AM helping you. there are tons of threads on this very forum about rear end sag on these 4runners and probably thousands all over the web, google is your best friend. another thing could be that your torsions are cranked up and instead of the rear sagging the front is just sitting too high. pics would be very helpful. does it look like its sitting level? you should measure from the rim to the fender not from the tire.

i will get pics uploaded as soon as i can. i will also take the front and rear measurements from the rim in the morning. please bear with me though i dont have a lot of time to google things right now i have a three day old baby that is eating up most of my time.
Old 02-25-2011, 07:20 PM
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well congrats on the new baby!
Old 02-25-2011, 07:50 PM
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Originally Posted by kharris
ok so i had the typical rear end sag in my 86 runner. i bought new leaf springs and put the ball joint spacers in the front add a leaf in the rear and pro comp shocks all around but the front wheel wells have 9.5 inches from top of the tire to wheel well and 6.5 in the rear. why is the front still 3" higher then the rear. and how can i resolve this issue

There's your problem. Depending on what size BJ Spacers you put in 1.5"s or 2", either way really, will LIFT the front end. The new springs in the rear brought the rig up to stock height, even with an AAL you aren't really going to gain anything except load capacity, reduced squat, and slow down the eventual sag.

Since your front end is now higher than stock, t-bars don't loose a whole lot over time, you could add height in the back with a ZUK set-up, longer shackles, blocks, etc. designed to LIFT the rear (not return it to stock).






ps not trying to sound like a d!ck.
Old 02-25-2011, 08:25 PM
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Just lower your torsion bars to match it with the rear. Or get a little longer shackle. And ill repeat it, the rear fenders are cut 2" inches lower.

And congrats on the kid!!

Last edited by rattlewagon; 02-25-2011 at 08:27 PM.
Old 02-26-2011, 03:51 AM
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Originally Posted by RE-RE
Just lower your torsion bars to match it with the rear. Or get a little longer shackle. And ill repeat it, the rear fenders are cut 2" inches lower.

And congrats on the kid!!
ok so i measured from top of the rim to bottom of the wheel wells and got 15" in the front and 13" and 12.5 " in the rear. not sure why the .5" inch difference but it seems to be right on with the 2" from front to rear that you mentioned of. i still think im gonna put shackles on though.
Old 02-26-2011, 03:54 AM
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and the pics will have to wait a little dropping it off to get 4.88's put in front and rear so i wont be a snail pushing 32's.
Old 11-07-2014, 05:06 PM
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if your rear end sags chalk it up to old age
Old 11-07-2014, 05:33 PM
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Originally Posted by greaseball
if your rear end sags chalk it up to old age
And what do you chalk it up to when one is guilty of bumping up a 3 year old post?
Old 11-10-2014, 08:11 AM
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again old age and not paying attention.
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