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XJ Ask the Question Thread
Seasoned Member
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Location: Oregon
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Year: 2000
Model: Cherokee (XJ)
Engine: 4.0 I6
Hey guys I'm brand new to the forum and have a few questions about my Xj I'm thinking about buying the 3.5 inch super flex kit from rubicon express. What size tires should I run I have 16 inch rims so it's gonna be metric because I'm not buying rims. It's 245/75/16s to small or should I go with 265/75/r16.Also does anyone have this kit and do you like it
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Year: 1993 YJ Wrangler
Engine: 4.0 I6
Ask the Question Thread
Hey guys I'm brand new to the forum and have a few questions about my Xj I'm thinking about buying the 3.5 inch super flex kit from rubicon express. What size tires should I run I have 16 inch rims so it's gonna be metric because I'm not buying rims. It's 245/75/16s to small or should I go with 265/75/r16.Also does anyone have this kit and do you like it
As for tires, I also don't know metric sizes, but you can comfortably run 31x10.5 tires on a 3" lift. If you trim your fenders and get aftermarket wheels with less backspacing, you can throw 33x12.5" rubbers under there.
A quick Google search for "metric tire size conversion" should give you what you need. I used to use one on a Miata site, but there are thousands of them out there.
And again, welcome to CF!
EDIT: Thanks for posting that, EZEARL
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Hey guys I'm brand new to the forum and have a few questions about my Xj I'm thinking about buying the 3.5 inch super flex kit from rubicon express. What size tires should I run I have 16 inch rims so it's gonna be metric because I'm not buying rims. It's 245/75/16s to small or should I go with 265/75/r16.Also does anyone have this kit and do you like it
CF Veteran
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Year: 1999
Engine: 4.0
Ask the Question Thread
Way to figure out the metric sizes.
Let's start with 235/75/15.
"235" is the millimeters of the width the tire is.
"75" is the aspect ratio (the percent of the width)
"15" obviously is the rim diameter.
To get the height, you would have to figure out the percentage of the width in millimeters, so 235mm* .75 = 176.25. That's wide the sidewall is
Next thing u gotta do is to multiply that by two
176.25*2 = 352.5 millimeters
Now at this point u gotta convert it to inches...
352.5/25.4 = 13.87 inches.
With that, you now can add the rim diameter.
13.87" + 15" = 28.87 inches. Let's round it up to 29"
To convert the tire width to inches
235/ 25.4 = 9.25 inches wide
So a 235/75/15 tire is actually 29" x 9.25" tire.
It is not that hard to do if u don't have a calculator handy.
Let's start with 235/75/15.
"235" is the millimeters of the width the tire is.
"75" is the aspect ratio (the percent of the width)
"15" obviously is the rim diameter.
To get the height, you would have to figure out the percentage of the width in millimeters, so 235mm* .75 = 176.25. That's wide the sidewall is
Next thing u gotta do is to multiply that by two
176.25*2 = 352.5 millimeters
Now at this point u gotta convert it to inches...
352.5/25.4 = 13.87 inches.
With that, you now can add the rim diameter.
13.87" + 15" = 28.87 inches. Let's round it up to 29"
To convert the tire width to inches
235/ 25.4 = 9.25 inches wide
So a 235/75/15 tire is actually 29" x 9.25" tire.
It is not that hard to do if u don't have a calculator handy.
CF Veteran
Join Date: Sep 2010
Location: Mercer County, NJ
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Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Way to figure out the metric sizes.
Let's start with 235/75/15.
"235" is the millimeters of the width the tire is.
"75" is the aspect ratio (the percent of the width)
"15" obviously is the rim diameter.
To get the height, you would have to figure out the percentage of the width in millimeters, so 235mm* .75 = 176.25. That's wide the sidewall is
Next thing u gotta do is to multiply that by two
176.25*2 = 352.5 millimeters
Now at this point u gotta convert it to inches...
352.5/25.4 = 13.87 inches.
With that, you now can add the rim diameter.
13.87" + 15" = 28.87 inches. Let's round it up to 29"
To convert the tire width to inches
235/ 25.4 = 9.25 inches wide
So a 235/75/15 tire is actually 29" x 9.25" tire.
It is not that hard to do if u don't have a calculator handy.
Let's start with 235/75/15.
"235" is the millimeters of the width the tire is.
"75" is the aspect ratio (the percent of the width)
"15" obviously is the rim diameter.
To get the height, you would have to figure out the percentage of the width in millimeters, so 235mm* .75 = 176.25. That's wide the sidewall is
Next thing u gotta do is to multiply that by two
176.25*2 = 352.5 millimeters
Now at this point u gotta convert it to inches...
352.5/25.4 = 13.87 inches.
With that, you now can add the rim diameter.
13.87" + 15" = 28.87 inches. Let's round it up to 29"
To convert the tire width to inches
235/ 25.4 = 9.25 inches wide
So a 235/75/15 tire is actually 29" x 9.25" tire.
It is not that hard to do if u don't have a calculator handy.
CF Veteran
Join Date: Sep 2012
Location: Springfield Virginia
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Year: 1998
Model: Cherokee
Engine: 4.0
Ask the Question Thread
I'd use 1/8th minimum...heavy stress point...BUT...before installing new axles
.i'd really go over the frame (inside and out) and make sure your not building on a "rust bucket"...it's hard to see sometimes..I've beat the living tar out of mine and NEVER had a frame issue..check it out good..it may be time to "re-skin" your good parts..
.i'd really go over the frame (inside and out) and make sure your not building on a "rust bucket"...it's hard to see sometimes..I've beat the living tar out of mine and NEVER had a frame issue..check it out good..it may be time to "re-skin" your good parts..
No I have not but I've also heard that it can also just use the other side of the frame as another anchor for the frame to split apart at the box. I was thinking of just plating the frame in a U form all the way from my front bumper tie in to behind the motor mount. I already have mid and front stiffeners.
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Year: 1999
Engine: 4.0
Thanks. I was so busy responding to other threads, I was gonna come back in and post something similar. More simpler of course lol but you just about summed it all up. And for reference I believe 285/ 75/16 (iirc) is 33 X 11. The only reason I didn't do 33s when I upgraded was because I didn't want an 11" wide tire in the snow belt.
Yellow motor...
Hello I picked up a 97 Cherokee today and I noticed the water pump was yellow...then while I was under it I noticed the oil pan was also yellow...I have a 98 and it is not yellow and my 92 was not either...why is my engine yellow? it has 139k and is clean and I was lead to believe all original...anyone have any info on this? thanks
Seasoned Member
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Location: Oregon
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Year: 2000
Model: Cherokee (XJ)
Engine: 4.0 I6
Hello I picked up a 97 Cherokee today and I noticed the water pump was yellow...then while I was under it I noticed the oil pan was also yellow...I have a 98 and it is not yellow and my 92 was not either...why is my engine yellow? it has 139k and is clean and I was lead to believe all original...anyone have any info on this? thanks
Moderator of Jeeps
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Year: 1993 YJ Wrangler
Engine: 4.0 I6
Ask the Question Thread
Hello I picked up a 97 Cherokee today and I noticed the water pump was yellow...then while I was under it I noticed the oil pan was also yellow...I have a 98 and it is not yellow and my 92 was not either...why is my engine yellow? it has 139k and is clean and I was lead to believe all original...anyone have any info on this? thanks
Junior Member
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Year: 1998
Model: Cherokee
Engine: AMC242