Sep 21, 2015, 02:17 PM
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- Jeep Grand Cherokee ZJ 1993 to 1998 Tires General Information and Specs
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All Lift & Tire questions go here!!!
Newbie
Joined: Jun 2012
Posts: 8
Likes: 0
Model: Cherokee
my jeep has been making a wierd noise sounds like my back right tire is rubbing. but i really dont think its the tire. i do have a lil split in my exhaust and thought mayber it could be that? and it usually only happens going about 60 or going up hill. need help have no idea what it could be. thanks
CF Veteran
Joined: Apr 2011
Posts: 3,493
Likes: 0
From: Chickamauga Ga.
Year: 2000
Model: Cherokee
Engine: 4.0
Originally Posted by kevingrizzle
if i already have a 3 inch and i buy the 2 inch budget spacer and shackles can i install it also with no modifications
Junior Member
Joined: Jun 2012
Posts: 33
Likes: 0
From: Western Wisconsin
Year: 1997
Model: Cherokee
Engine: 4.0
I just installed 3" blocks and 3" coil spacers on my 97 xj sport. I was wondering if I wanted to lift it three more inches, with 3" lift coils, and some shackles... what all else will I have to do? extend the brake lines, and to a T-case drop? maybe new controll arms? I'm not the most knowledgable when it comes to this, so any info would help!
CF Veteran
Joined: Jul 2011
Posts: 4,521
Likes: 1
From: JOCO
Year: 1999
Engine: 4.0 Inline 6
Originally Posted by LittleWhiteXJ
I just installed 3" blocks and 3" coil spacers on my 97 xj sport. I was wondering if I wanted to lift it three more inches, with 3" lift coils, and some shackles... what all else will I have to do? extend the brake lines, and to a T-case drop? maybe new controll arms? I'm not the most knowledgable when it comes to this, so any info would help!
Old School CF Moderator
Joined: May 2010
Posts: 9,652
Likes: 3
From: Chattanooga
Year: 2001
Model: Cherokee
Engine: 4.0
Originally Posted by LittleWhiteXJ
I just installed 3" blocks and 3" coil spacers on my 97 xj sport. I was wondering if I wanted to lift it three more inches, with 3" lift coils, and some shackles... what all else will I have to do? extend the brake lines, and to a T-case drop? maybe new controll arms? I'm not the most knowledgable when it comes to this, so any info would help!
Moderator of Jeeps
Joined: Jul 2011
Posts: 21,029
Likes: 3
From: Frederick, MD from Cleveland, OH
Year: 1993 YJ Wrangler
Engine: 4.0 I6
Seriously, blocks aren't good. I'd recommend putting some 3" leaf springs in the back and removing those. But to answer your question, at 6" you need brake lines, shocks, SYE, track bar and steering upgrade, LCAs, UCAs, and you may need to swap one or both axles depending on what tires size you want to run. On that note, you'll probably want to regear if you're installing 33s or larger, unless you don't have any hills in your area.
Moderator of Jeeps
Joined: Jul 2011
Posts: 21,029
Likes: 3
From: Frederick, MD from Cleveland, OH
Year: 1993 YJ Wrangler
Engine: 4.0 I6
When you hit the gas, two things happen:
1) The rear wheels start to turn one way
2) The rear axle housing tries to turn the other way.
Equal and opposite reaction, and all that
Axle wrap is the axle trying to rotate in the opposite direction of the wheels under torque. When you move forwards, the pinion on the rear axle housing will tilt upwards a bit as the housing twists under the springs. The softer your springs, the more this happens, and in really bad cases the pinion can move enough to snap a driveshaft yoke, bend the springs, etc.
Lift blocks make it worse because they increase the leverage of the housing on the springs.
1) The rear wheels start to turn one way
2) The rear axle housing tries to turn the other way.
Equal and opposite reaction, and all that
Axle wrap is the axle trying to rotate in the opposite direction of the wheels under torque. When you move forwards, the pinion on the rear axle housing will tilt upwards a bit as the housing twists under the springs. The softer your springs, the more this happens, and in really bad cases the pinion can move enough to snap a driveshaft yoke, bend the springs, etc.
Lift blocks make it worse because they increase the leverage of the housing on the springs.
CF Veteran
Joined: Jul 2011
Posts: 4,521
Likes: 1
From: JOCO
Year: 1999
Engine: 4.0 Inline 6
I've never read that. Makes perfect sense. I have 3" blocks right now from the po and have never had a problem but i still dont recommend them. They're just in till i finish gathering my bastard pack... Plus they are steel and installed properly so...
Member
Joined: Jun 2010
Posts: 247
Likes: 0
From: Soddy Daisy, TN
Year: 1999
Model: Cherokee
Engine: 4.0L
Originally Posted by 01GreenMachine
Sweet thanks i just ordered mine earlier this week cant wait to get them 31x10.50R15 tho