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Old 07-11-2011, 11:23 AM   #1
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How long of shocks to get?

I'm wanting to get new shocks on my jeep. How do I know what size to get? As in the extended length? I have a 4" lift on my jeep so how would i measure for which shock to get?

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Old 07-11-2011, 11:30 AM   #2
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For reference:
In front: 13.5" compressed length shocks fit with no bumpstop extension
In Rear: 12" compressed length shocks fit with no bumpstop extension

Regardless of lift height - Subtract the compressed length of the new shocks you're trying to fit and you've got a good starting point for the required bumpstop extension.

Example: 15.5" compressed length shock (like OME N66L) = 15.5-13.5 = 2" front bumpstop requirement.

With 4" of lift, this would mean 2" front bumpstop extensions give a total increase of 2" of uptravel.

So for 4" of lift, you would find front shocks requiring 2" of bumpstop extension. So front shocks that are 15.5" compressed length and 10" travel would be ideal. Follow the same process for the rear, but note the bumpstop extension & shock requirements will be significantly different due to pinion angle alignment changing the orientation of the bumpstops & shock mounts.

read these:
http://www.wranglerforum.com/f5/corr...gth-70047.html
bumpstops, shock length, and tires size. help me iron out the fuzzy points.. - JeepForum.com

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Old 07-11-2011, 11:33 AM   #3
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so the extended length of a shock doesnt really matter? its all on the compressed length right?
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Old 07-11-2011, 11:36 AM   #4
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Quote:
Originally Posted by USmarine212 View Post
so the extended length of a shock doesnt really matter? its all on the compressed length right?
both are important and closely related.

too long an extended length and your spring will unseat, which can be bad.

funny thing is if you focus on the compressed length, work out how much bumpstop you need to maintain the uptravel you want, the extended length usually isn't an issue. If you're maximizing downtravel, the same rules still apply, you just need to pay closer attention to if the springs are unseating and think about limiting straps.

notice I said compressed length + a travel amount? compressed length + travel = extended length.
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Old 07-11-2011, 07:36 PM   #5
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Get the Bilsteins, they match the part number to the amount of lift....
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