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Unread 07-03-2013, 10:20 PM   #1
83vert
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1982 CJ7 
 
Join Date: Aug 2010
Location: New York
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How much height can i lose by airing down?

I'm looking to put my new tires on but I'm afraid that they might make the jeep to tall to get into the garage. If I air down how much lower will the jeep sit? The tires are 34.5" and I have the rubicon 4.5" lift

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Unread 07-03-2013, 10:30 PM   #2
skizriz
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1978 CJ7 
 
Join Date: Jun 2011
Location: , Pa
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Probably not much unless you let almost all of it out. I air down to 8 psi when I go wheeling, with no noticeable bulge unless I plant a tire against something.
It would really suck to have to air up the tires every day.

I clear my garage door by less than 1". I could crank the door springs up tighter and gain another inch or so if I had to.
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Unread 07-03-2013, 10:39 PM   #3
83vert
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1982 CJ7 
 
Join Date: Aug 2010
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I think ill make it but it would suck if the jeep wasn't finished and I couldn't get it back in the garage.
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Unread 07-03-2013, 11:39 PM   #4
lucdog
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If you have a door opener adjust it so the door opens further.
Wether you have a opener or not, adjusting the springs may not raise the door enough. The point of the springs be they torsion ( above the door, on the header) or the old style springs along the top rail, is so the door is balanced. Meaning if the door is opened 1/2 way the door will stay where it stopped.

If your spring(s) are the torsion style, and you have never worked on them, I strongly advise NOT adjusting them yourself.
I personally know 2 people who were off work because of injuries from trying this.
I do know the proper way to adjust this type of spring, and have done it a number of times.

I have a 7' garage door, my SOA CJ on 36" tires fits under my door, if I disconnect the opener and push the door up. A 2x4 is used to hold it up far enough. ( between the header and door)
My other CJ with 35" tires and 4" of lift fits thru the door without disconnecting the opener.

Bill
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1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac trail Jeep.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7 pretty weekend and sometimes to work Driver in the summer, My first rebuild, if the Q-trac and 5 are broke, this one is the one to take. its just as capable as the other 2, except nice paint.
1984 Grand Wagoneer, 1 ton axles, great 360/727, and a big a$& tree fell on it .
1989 YJ the CJ to YJ conversion.
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