Preventing vibrations

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Apr 20, 2012 | 12:23 AM

#16

sthon

CF Veteran

Joined: Mar 2011

Posts: 2,570

Likes: 4

From: California

Year: 1992

Model: Cherokee

Engine: 4.0 HO

Quote:

Originally Posted by desertrunner33

I understand the angle change and all that stuff. What I'm asking is since when you get a suspension lift you have new shocks that support it but when you get new leaf springs or shackles you don't get new shocks or any new support your car is just higher. SO what I'm saying is that I was wondering if you were more likely to get the driveline vibrations with the suspension lift vs. new leaf springs/shackles

If you do a 4.5" lift you will need new front and rear shocks. Leaf springs and shackles are a suspension lift.

Not sure what you mean by suspension lift vs new leaf springs/shackles?

Apr 20, 2012 | 12:24 AM

#17

desertrunner33

Thread Starter

Junior Member

Joined: Apr 2012

Posts: 37

Likes: 0

From: Palm Desert

Model: Cherokee

Quote:

Originally Posted by sthon

If you do a 4.5" lift you will need new front and rear shocks.

This is the kit I'm getting
http://www.roughcountry.com/jeep_xj_4x.html

Apr 20, 2012 | 12:28 AM

#18

crbnfibr

CF Veteran

Joined: Dec 2011

Posts: 3,237

Likes: 1

From: albany, new york

Year: 1988

Model: Cherokee

Engine: i6

i did a horrible job trying to explain my thoughts...
well youtube sucks so...
stock, pb blaster is ur t-case, fish is ur diff
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lifted

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u joints on both ends bind up and cause vibes
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Apr 20, 2012 | 12:28 AM

#19

sthon

CF Veteran

Joined: Mar 2011

Posts: 2,570

Likes: 4

From: California

Year: 1992

Model: Cherokee

Engine: 4.0 HO

Quote:

Originally Posted by desertrunner33

This is the kit I'm getting
http://www.roughcountry.com/jeep_xj_4x.html

That should come with everything you need. You might find you need shims for the rear axle, with a 4.5" lift 4 degree shims seem to be about right.

Apr 20, 2012 | 12:29 AM

#20

sthon

CF Veteran

Joined: Mar 2011

Posts: 2,570

Likes: 4

From: California

Year: 1992

Model: Cherokee

Engine: 4.0 HO

Quote:

Originally Posted by crbnfibr

i did a horrible job trying to explain my thoughts...
well youtube sucks so...
stock, pb blaster is ur t-case, fish is ur diff

lifted

u joints on both ends bind up and cause vibes

haha, nice visual!

Apr 20, 2012 | 12:30 AM

#21

crbnfibr

CF Veteran

Joined: Dec 2011

Posts: 3,237

Likes: 1

From: albany, new york

Year: 1988

Model: Cherokee

Engine: i6

also the yoke slips out, hence the slip yoke eliminator... it pulls out of the pb blaster, it makes it so you cant lose ur yoke on the trail...

Apr 20, 2012 | 08:11 AM

#22

93XJLI

CF Veteran

Joined: Jan 2008

Posts: 3,671

Likes: 11

From: LI, NY

Year: 1998

Model: Cherokee

Engine: 4.0, bolt ons for days...

Quote:

Originally Posted by martyinco

^ LMFAO

Cherokees are know for "vibrations"

No vibes here, and drives straight with my hands off the wheel at 85.. Do it right and your jeep will drive great.

Apr 21, 2012 | 02:59 PM

#23

mikeyb078

Newbie

Joined: Sep 2011

Posts: 14

Likes: 0

I did the rc 4.5 lift on my 2000 xj with np242. I had vibes with the tcase drop. I ended up taking out the drop, ordering a new driveshaft to slip over the existing output shaft on the tcase, and used 6 degree shims to get it perfectly aligned. No more vibes

Apr 21, 2012 | 11:14 PM

#24

outkast

Senior Member

Joined: Dec 2009

Posts: 682

Likes: 0

From: Elk River, Minnesota

Year: 1989

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by crbnfibr

also the yoke slips out, hence the slip yoke eliminator... it pulls out of the pb blaster, it makes it so you cant lose ur yoke on the trail...

The reason for a SYE is NOT because it can slip out. It is to make the the drive-shaft longer and enable the use of a Double Cardan joint. There has to be a slip joint in either the shaft somewhere whether it is at the transfer case or in the middle of the shaft.

Apr 21, 2012 | 11:19 PM

#25

crbnfibr

CF Veteran

Joined: Dec 2011

Posts: 3,237

Likes: 1

From: albany, new york

Year: 1988

Model: Cherokee

Engine: i6

but IT CAN slip out on the trail....

Apr 21, 2012 | 11:22 PM

#26

outkast

Senior Member

Joined: Dec 2009

Posts: 682

Likes: 0

From: Elk River, Minnesota

Year: 1989

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by crbnfibr

but IT CAN slip out on the trail....

Only if your shaft is to short. A shaft run with a SYE CAN also slip apart on the trail.

Apr 21, 2012 | 11:28 PM

#27

crbnfibr

CF Veteran

Joined: Dec 2011

Posts: 3,237

Likes: 1

From: albany, new york

Year: 1988

Model: Cherokee

Engine: i6

lets think about articulation... lift/vibes/sye er tcase drop just say it can slip out... i know thats not the reason, thats why i said "also"

Apr 22, 2012 | 12:20 AM

#28

desertrunner33

Thread Starter

Junior Member

Joined: Apr 2012

Posts: 37

Likes: 0

From: Palm Desert

Model: Cherokee

Quote:

Originally Posted by crbnfibr

i did a horrible job trying to explain my thoughts...
well youtube sucks so...
stock, pb blaster is ur t-case, fish is ur diff

lifted

u joints on both ends bind up and cause vibes

Oh ok thanks that helps

Apr 22, 2012 | 05:02 AM

#29

freegdr

CF Veteran

Joined: Mar 2010

Posts: 47,923

Likes: 38

From: Broward County Fl.

Year: 1989 xj sport 2dr

Model: Cherokee

Engine: 12 hole bosch Injectors

Quote:

Originally Posted by sthon

That should come with everything you need. You might find you need shims for the rear axle, with a 4.5" lift 4 degree shims seem to be about right.

look close shims are made into spring pack all ready ,and shackles help reduce vibration they angle pinion up at tc

Apr 22, 2012 | 09:40 AM

#30

BotakBeng

CF Veteran

Joined: Jan 2011

Posts: 1,894

Likes: 4

From: Las Vegas

Year: 1999

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by desertrunner33

What cheap ways is there to prevent driveline vibrations or any vibrations before they happen? My cherokee is gonna be a daily driver so I really don't want those! By cheap I mean under $150.

Read this....it will have you a good idea WHY and HOW.

Quote:

Originally Posted by desertrunner33

I'm getting the 4.5" lift kit w/x-flex arms and N2.0 shocks brand new from the Rough Country vendor on this website. Probably with 32" tires

I just did the same lift kit and tire combo.

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I would re-consider RC rear leaf springs, they are too short and stiff as hell.
I also installed 6* shims and SYE....no vibration so far.

GL

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