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Old Mar 26, 2014 | 10:39 AM
  #1  
shedhorn's Avatar
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From: Southern Oregon
Year: 1991
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Red face front end diving

You will have to forgive the newbie question, I am a decent mechanic but kinda new to the 4x4 scene. I have a 3.5 inch lift with 32's, I have the sway bar disconnected, when I hit the breaks the front end dips a lot! If I hit the very hard at all I can feel it bottom out, is this just the nature of the beast with how I have it set up? Or is there something I can do about it? Thanks in advance.
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Old Mar 26, 2014 | 11:22 AM
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From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
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Originally Posted by shedhorn
You will have to forgive the newbie question, I am a decent mechanic but kinda new to the 4x4 scene. I have a 3.5 inch lift with 32's, I have the sway bar disconnected, when I hit the breaks the front end dips a lot! If I hit the very hard at all I can feel it bottom out, is this just the nature of the beast with how I have it set up? Or is there something I can do about it? Thanks in advance.
Depends. What lift kit you running. What coils, leafs shocks etc. Also how is your bumpstoppage

I run swayless and it doesn't dip or bottom out unless some bad bumps.
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Old Mar 26, 2014 | 12:38 PM
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Year: 1988
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Also do you have the factory bumper? With aftermarket heavy duty bumpers sometimes the coils will be too soft for the weight.
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Old Mar 26, 2014 | 01:16 PM
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Being lifted 3.5 we have to assume it has a higher spring rate than stock as most companies do. He's on 32s so unless he filled the whole spring with bumpstop, its not that. A aftermarket bumper could contribute but I dont think its the only cause. Maybe worn bushings allowing axle wrap to get closer to bottoming out, blown shocks. Im at 3' and 31s, I can slam breaks at 40 and skid to a stop, it doesn't dive much.
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Old Mar 26, 2014 | 01:29 PM
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From: Mercer County, NJ
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Originally Posted by PurpleToxin505
Being lifted 3.5 we have to assume it has a higher spring rate than stock as most companies do. He's on 32s so unless he filled the whole spring with bumpstop, its not that. A aftermarket bumper could contribute but I dont think its the only cause. Maybe worn bushings allowing axle wrap to get closer to bottoming out, blown shocks. Im at 3' and 31s, I can slam breaks at 40 and skid to a stop, it doesn't dive much.
I ask about bumpstops to find out if he ia bottoming his shocks and coils out which we all know is a bad thing correct.

Still waiting on the OP to mention his setup
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Old Mar 26, 2014 | 04:01 PM
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How old are your shocks?
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Old Mar 26, 2014 | 07:05 PM
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Nature of the beast if your spring rate is too low for the weight and the condition of your shocks isnt good. I bet it rides and flexes nice. Wish I had that problem.
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Old Mar 26, 2014 | 07:13 PM
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It was lifted when I bought it so honestly don't know what lift it is, not even sure it's 3.5 that's just what the guy I bought it from told me? I guess I can try replacing the shocks, if I slammed on the breaks at 40 I would loose a couple teeth lol. I do have an after market bumper but it's a small one, not much extra weight. So could I go buy heavier springs? How would a guy go about getting the right ones? Sorry to sound like such a newb.....but I am! Haha, thanks for the replies everyone.
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Old Mar 26, 2014 | 07:16 PM
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Originally Posted by Tsaani97xj
Nature of the beast if your spring rate is too low for the weight and the condition of your shocks isnt good. I bet it rides and flexes nice. Wish I had that problem.
Yes actually it rides and flexes VERY well!
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Old Mar 26, 2014 | 08:42 PM
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From: Mercer County, NJ
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OP. Try and take the shocks off and see their condition. Take pictures of your lift components. May not just be your shocks bad. Getting coils is as easy as ordering from serious offroad products.
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Old Mar 26, 2014 | 09:32 PM
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sounds like a shock issue but could be a combination of of stuff
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Old Mar 26, 2014 | 09:49 PM
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I felt that after rebuilding my rear drum brakes there was less forward momentum when coming to a quick stop, which seemed to take care of the slight dive mine had. Yours sounds pretty extreme to be caused by that seeing as how rear drum brakes provide little stopping power anyway...increased under hard braking though.
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Old Mar 27, 2014 | 04:01 AM
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Thanks for the replies, I will take some pictures tomorrow.
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