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Old 06-06-2013, 12:33 PM   #1
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Question Tire pressure suggestions

I have a 1988 YJ that has 32" tires on 15" rims. The Jeep is lifted 2" with a body lift and 3" of suspension lift. Any suggestions on what pressure to run the tires at? The jeep is driven 90% of the time on the street. I want the tires to last as long as possible but want the Jeep to run as smooth as possible as well.

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Old 06-06-2013, 12:35 PM   #2
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I'd suggest around 30psi.

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Old 06-06-2013, 08:26 PM   #3
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depends on the tire type not just the size, what brand/style tire are you running?
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Old 06-06-2013, 08:31 PM   #4
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not to thread jack... but i have the same question! I have 33" BFG all terrains. Right now i have them aired up to 31 PSI for road use. Also what do you air them down to for off road use for mud/rocks etc.?
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Old 06-07-2013, 07:30 AM   #5
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I'm running 32" BFG Mud Terrain T/A's
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Old 06-07-2013, 12:34 PM   #6
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I would run 30-35 psi on the street, about 15 psi on the trail, and go down to about 5 psi on the rocks. But that's my preference, you may like something different on the trail... it depends on the terrain mostly.
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Old 06-07-2013, 12:49 PM   #7
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do a chalk test, draw a heavy line across the tire drive a few feet and check. if the center is gone you have to much pressure, edges to little. I run 28 in 31 10.50's.
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Old 06-07-2013, 01:06 PM   #8
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Quote:
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do a chalk test, draw a heavy line across the tire drive a few feet and check. if the center is gone you have to much pressure, edges to little. I run 28 in 31 10.50's.
ive never heard this, but it seems like a great idea, im going to give it a try this weekend, I currently have 30 psi in my BFG AT's
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Old 06-07-2013, 01:27 PM   #9
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Lots of good advice here....I did the chalk test and found 24 to be the magic number for my 35's
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Old 06-07-2013, 01:33 PM   #10
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Quote:
Originally Posted by tigerblood View Post
ive never heard this, but it seems like a great idea, im going to give it a try this weekend, I currently have 30 psi in my BFG AT's
Please let me know what PSI you discover to be the best for the 33" BFG ATs, we have the same tires
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Old 06-07-2013, 02:05 PM   #11
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will do
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Old 06-07-2013, 04:17 PM   #12
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Quote:
Originally Posted by roadyrob View Post
do a chalk test, draw a heavy line across the tire drive a few feet and check. if the center is gone you have to much pressure, edges to little. I run 28 in 31 10.50's.
I kinda remember this suggestion. But I thought you need to have the tires at normal operating temperature and driving more than a few feet.
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Old 06-07-2013, 08:10 PM   #13
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I do 40-45 psi on 31s for max fuel economy. Mine is on the road 100% of the time so I can't speak for trail psi
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Old 06-07-2013, 08:23 PM   #14
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that sounds really over inflated for a 31" tire... no?
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Old 06-07-2013, 08:25 PM   #15
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Run the recommended pressure and then if you don't like the ride adjust down or up a couple pounds at a time until you find what works for you. It took a couple weeks and mine likes 29 psi all around.
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Old 06-07-2013, 08:45 PM   #16
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Old 06-09-2013, 08:33 AM   #17
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Might be a little, I don't know

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