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- Jeep Grand Cherokee ZJ 1993 to 1998 Tires General Information and Specs
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CF Veteran
Join Date: May 2012
Location: Wilmington,NC
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Year: 1989
Model: Cherokee
Engine: 4.0
Newbie
Join Date: Mar 2014
Location: Tucson, AZ
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Year: 96
Model: Cherokee
Engine: 4.0L
Done a bunch of searching and have not been able to find any specific answers to a question I have...
I found a thread about suggested on road tire pressures but nothing about off road pressures. I see threads about airing down for trails and airing up when going back on road but nothing about how far down people are going for the various types of terrain. I know this will have lots of variables but just trying to see if anyone knows of a general ball park of where to start.
I have a '96 xj currently with LT235/75R15 Cooper Discoverer AT3's. Most of my off roading will be in Southern Arizona.
Thanks in advance!
I found a thread about suggested on road tire pressures but nothing about off road pressures. I see threads about airing down for trails and airing up when going back on road but nothing about how far down people are going for the various types of terrain. I know this will have lots of variables but just trying to see if anyone knows of a general ball park of where to start.
I have a '96 xj currently with LT235/75R15 Cooper Discoverer AT3's. Most of my off roading will be in Southern Arizona.
Thanks in advance!
Newbie
Join Date: Mar 2014
Location: Southern CT
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Year: 1999
Model: Cherokee
Engine: 4.0L inline 6
Finally got tires for my XJ..33/10.50R15 BF Goodrich A/T...very glad i found these. got a deal too..4 for 200..not too shabby
CF Veteran
Join Date: Aug 2011
Location: San Jose
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Year: 89
Model: Cherokee
Engine: 4.0 I6
Done a bunch of searching and have not been able to find any specific answers to a question I have...
I found a thread about suggested on road tire pressures but nothing about off road pressures. I see threads about airing down for trails and airing up when going back on road but nothing about how far down people are going for the various types of terrain. I know this will have lots of variables but just trying to see if anyone knows of a general ball park of where to start.
I have a '96 xj currently with LT235/75R15 Cooper Discoverer AT3's. Most of my off roading will be in Southern Arizona.
Thanks in advance!
I found a thread about suggested on road tire pressures but nothing about off road pressures. I see threads about airing down for trails and airing up when going back on road but nothing about how far down people are going for the various types of terrain. I know this will have lots of variables but just trying to see if anyone knows of a general ball park of where to start.
I have a '96 xj currently with LT235/75R15 Cooper Discoverer AT3's. Most of my off roading will be in Southern Arizona.
Thanks in advance!
Newbie
Join Date: Mar 2014
Location: Tucson, AZ
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Year: 96
Model: Cherokee
Engine: 4.0L
Thanks for the reply! I figured it would probably be in the low twenties but wasn't sure about going much lower. Last thing I would want would be to pop a bead loose and have a flat! Still don't know why none of the words and short phrases I used in the searches I did in this forum came up with the info I was looking for. Just got my SJ a couple months ago and haven't been around any experienced off roaders to learn from yet...
CF Veteran
Join Date: Sep 2010
Location: Mercer County, NJ
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Thanks for the reply! I figured it would probably be in the low twenties but wasn't sure about going much lower. Last thing I would want would be to pop a bead loose and have a flat! Still don't know why none of the words and short phrases I used in the searches I did in this forum came up with the info I was looking for. Just got my SJ a couple months ago and haven't been around any experienced off roaders to learn from yet...
CF Veteran
Join Date: Sep 2012
Location: grove city OHIO
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Year: 1999
Model: Cherokee
Engine: 4.0 HO
CF Veteran
Join Date: Sep 2010
Location: Mercer County, NJ
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
CF Veteran
Join Date: Jun 2012
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Year: 1989
Model: Cherokee
Engine: 4.0L
My understanding is if you go much lower than 13-15 you risk popping off the bead, sans beadlocks. I have no 1st hand experience and I don't plan on finding out.
Moderator of Jeeps
Join Date: Jul 2011
Location: Frederick, MD from Cleveland, OH
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Year: 1993 YJ Wrangler
Engine: 4.0 I6
CF Veteran
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Location: Mercer County, NJ
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
CF Veteran
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Year: 1989
Model: Cherokee
Engine: 4.0L
I can see into the future and knew this post was coming. It's not my intent to bash your answer but since you basically said, "it depends" without giving a chart then some range for everybody to begin with is a good idea unless it's know for sure for a given tire/size.
Moderator of Jeeps
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Year: 1993 YJ Wrangler
Engine: 4.0 I6
I can see into the future and knew this post was coming. It's not my intent to bash your answer but since you basically said, "it depends" without giving a chart then some range for everybody to begin with is a good idea unless it's know for sure for a given tire/size.
You gonna make a chart for every tire on the market with every available size and aspect ratio, or should we have the guy asking the question post his information so we can give an educated answer?
CF Veteran
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Year: 1989
Model: Cherokee
Engine: 4.0L
I'd like to do the math for a chart based on quantum mechanics. Sadly we need a Cray supercomputer to run the simulation.