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Unread 04-11-2010, 05:56 PM   #1
asjeep
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stock height front bumper to ground and rear to ground

Anyone know the stock height front bumper to ground and rear to ground on a stock tj, mine is an 02


we installed the lift and forgot to measure before

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Last edited by asjeep; 04-11-2010 at 06:50 PM..
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Unread 04-11-2010, 11:58 PM   #2
BlueFlame
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Measure your springs from perch to perch, and compare it with the stock measurements in the sticky thread at the top of the forum.
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Unread 04-12-2010, 01:30 AM   #3
mJUSTINm
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That method bothers me. Not all springs are equal; some are progressive, some are stiff, and some are taller than advertised. A better method would be to measure from the center of your wheel to a point on the body, like the bottom of a stock flare. Compare that to the same measurement from a stock height TJ and you'll see the lift you gained from springs alone. If you measure from ground to bumper, or ground to anything, you'll have to take into consideration the tire height.
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Unread 04-12-2010, 06:43 AM   #4
Skyryder
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17" front, stock '97 with 31x10.5 new and 97# of winch & stuff on the front.
19" rear with 100# of stuff (tool box, axe, etc, junk)
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Unread 04-12-2010, 07:16 AM   #5
dualtjs
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Quote:
Originally Posted by jeep_punk View Post
That method bothers me. Not all springs are equal; some are progressive, some are stiff, and some are taller than advertised. A better method would be to measure from the center of your wheel to a point on the body, like the bottom of a stock flare. Compare that to the same measurement from a stock height TJ and you'll see the lift you gained from springs alone. If you measure from ground to bumper, or ground to anything, you'll have to take into consideration the tire height.
How would progressive rate springs, taller springs, etc make 15" from perch to perch mean something different for 1 spring than another? 15" is 15" and it'll translate to the same amount of lift, as any other method of measurement. If it doesn't then your other measurement is wrong.
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Unread 04-12-2010, 12:23 PM   #6
mJUSTINm
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Ahh I didn't see that it said from perch to perch. I thought he was talking about measuring just the spring when it's not installed. High five to a long day of driving followed by walking home in the rain and browsing JF while barely awake.
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Unread 04-12-2010, 01:06 PM   #7
BlueFlame
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Yep.
Measuring the height of the bumper, body, fender, door handles whatever on the rig from the ground and comparing it others is essentially meaningless, unless they also measure their tires and you account for that.
Measuring spring height tells you Exactly how much lift you achieved.
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Unread 04-12-2010, 01:20 PM   #8
BigD97TJ
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Quote:
Originally Posted by BlueFlame View Post
Measure your springs from perch to perch, and compare it with the stock measurements in the sticky thread at the top of the forum.
so probably just being retarded, but can you link that spring perch dimensions page? I too lifted my jeep without measuring. Don't really care as i like the height as is just wondering. Thanks.
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Unread 04-12-2010, 01:23 PM   #9
dualtjs
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Here ya go:

http://www.jeepforum.com/forum/f9/fa...7/#post6077636
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Unread 04-12-2010, 01:36 PM   #10
BigD97TJ
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Thanks dualtjs. I guess my used procomp springs aren't what they advertise. I've got about 13.75 for the front and around 8.75 in the rear. looks like i'll be getting some different springs as the ride sucks too.
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