What's the proper measurement to determine sag? - JeepForum.com
 
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post #1 of 11 Old 04-20-2019, 12:24 PM Thread Starter
T1m
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What's the proper measurement to determine sag?

I'm preparing for a suspension upgrade and leveling of my WK. I just measured 18.5" from the center of the wheel hub to the fender, except for the right rear, which was 19".(?) It maybe the way I'm parked though, because it always looks level.

What should I be measuring from the center of the hub to the fender lip?

The reason I ask is I wonder if I need springs too.

Cheers!

P.S. My local shop quoted me at around $1400 for new shocks and springs on all 4 corners.

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post #2 of 11 Old 04-20-2019, 05:37 PM
underscore
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The best info I found was that front is 19" stock, rear is 19.5". Mine was at an inch of sag up front so I replaced everything. Ensure that the quote includes new front strut mounts and spring isolators (top and bottom), front bump stops are a good idea too since then the old strut assemblies don't need to be disassembled at all which saves time.

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post #3 of 11 Old 04-21-2019, 02:26 AM
HEMI426
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$ 1400 !!!!

You should contact @Kolak , he will save you a lot of money.
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post #4 of 11 Old 04-21-2019, 11:15 AM Thread Starter
T1m
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Originally Posted by HEMI426 View Post
$ 1400 !!!!

You should contact @Kolak , he will save you a lot of money.
I know, but I have a trusted shop I deal with. If I bring my own parts they will not warranty anything, even if they screw up installing it. This is my daily driver and can't afford any unscheduled down time.

Plus I'd hate to get information from @Kolak only to go somewhere else for the parts, it seems disingenuous. I may though, refer them to Kolak for the parts if they're regular suppliers don't stock them.

I'm still in the research stage and am planning on doing this within the next couple of months.

Thanks for your input!
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post #5 of 11 Old 04-21-2019, 11:18 AM Thread Starter
T1m
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Quote:
Originally Posted by underscore View Post
The best info I found was that front is 19" stock, rear is 19.5". Mine was at an inch of sag up front so I replaced everything. Ensure that the quote includes new front strut mounts and spring isolators (top and bottom), front bump stops are a good idea too since then the old strut assemblies don't need to be disassembled at all which saves time.
My shop quote includes the isolators, not sure about the bump stops though but will ask.

Thanks!
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post #6 of 11 Old 04-21-2019, 11:53 AM
underscore
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No problem! I forgot to get the bump stops and it sucked having to cut apart the crusty old assemblies just to get them.

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post #7 of 11 Old 04-21-2019, 12:40 PM
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2008 WK GC Limited 5.7 HEMI. Limited 18"? STD 7 spoke rims 19-1/2" OD w 245/60R18 Wild Spirit Sport HXT tires @ 36 PSI and 3/4 tankful of 89 octane fuel. (JK about the fuel type's relevance). On my somewhat even/level concrete drive, I measured front: 32" AGL above ground level TFL to fender lip and 18-1/2" COW center of wheel TFL DSF driver side front, and 32-3/4" AGL TFL with 19" COW TFL PSF passenger side front. Rear is DSR 33-5/8" AGL TFL and 19-3/4" COW TFL, and PSR passenger side rear is 32-1/2" AGL TFL and 18-5/8" COW TFL. sorry, I was just on the abbreviation thread...
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post #8 of 11 Old 04-21-2019, 09:21 PM
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^Sorry I was off my meds for a minute there JK. Anyway, it looks like my measurements are quite close to T1ms, being 18-1/2 to 19" from wheel center to fender lip. Does this mean we are at standard height? T1m what motor do you have? I have the Hemi, which brings the question: Assuming the Hemi is heavier than say, the v-6, does it have heavier front springs too? And at 18-1/2" hub to fender, does that mean it's oem height, ie. not lifted by previous owner?
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post #9 of 11 Old 04-22-2019, 12:28 PM
caulk04
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At 18.5", you're fine.

The Hemi is the heaviest engine put in this platform and I'm sure the springs were specific when new. Aftermarket does not make that distinction.

08 Limited Hemi - wheels, tires, springs...ya know, stuff
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post #10 of 11 Old 04-22-2019, 12:51 PM Thread Starter
T1m
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Quote:
Originally Posted by ScowHound View Post
^Sorry I was off my meds for a minute there JK. Anyway, it looks like my measurements are quite close to T1ms, being 18-1/2 to 19" from wheel center to fender lip. Does this mean we are at standard height? T1m what motor do you have? I have the Hemi, which brings the question: Assuming the Hemi is heavier than say, the v-6, does it have heavier front springs too? And at 18-1/2" hub to fender, does that mean it's oem height, ie. not lifted by previous owner?
I have the 4.7. This weekend I'm going to empty the Jeep and take another measurement.
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post #11 of 11 Old 04-22-2019, 01:01 PM
BadExample
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My 4.7 Limited measured about 18.5” front and 19” rear.

CJ5 we don't talk about, 58 Willys CJ-3B gone
79 J-10 gone, 99 GC WJ murdered and gone
2006 GC WK
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