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Old 08-02-2012, 01:52 AM   #1
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Help sizing shocks to existing lift

First post.I tried searching but no luck.
I just purchased an 02 sport with 33 x 12.5 tires and was thinking about changing the shocks but don't know what size/style of lift I have.
I measured from top of tire to bottom of factory fender flare and the front is 5" and the rear is 6.5" any ideas as to lift size.

Thanks
Ken

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Old 08-02-2012, 07:30 AM   #2
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Post some pics..

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Old 08-02-2012, 10:12 AM   #3
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Don't bother buying shocks listed for "X inches of lift". Instead do this:

Park on a level surface. Measure from the top shock mount to the bottom mount. Write that number down. Then measure the distance between the bumpstops, making sure to measure from the bump stop cup rather than the end of the soft jounce bumper. Write that number down. Now, by subtracting the second number from the first, you have the compressed length of your shock. Do this for both the front and rear.

So for instance, if your first number was 17" and your second was 5", you know your compressed shock length is 12". You can now either get shocks that fit that compressed length, or adjust your bumpstops with your new shocks in mind.

Doing it this way ensure you get a shock that fits your suspension, rather than getting something that is too long/short and you end up ruining your brand new shock.

If you're so inclined, you can also simply remove a front and rear shock and measure it to get your extended/compressed measurements.
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Old 08-02-2012, 12:35 PM   #4
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Quote:
Originally Posted by geiman
Don't bother buying shocks listed for "X inches of lift". Instead do this:

Park on a level surface. Measure from the top shock mount to the bottom mount. Write that number down. Then measure the distance between the bumpstops, making sure to measure from the bump stop cup rather than the end of the soft jounce bumper. Write that number down. Now, by subtracting the second number from the first, you have the compressed length of your shock. Do this for both the front and rear.

So for instance, if your first number was 17" and your second was 5", you know your compressed shock length is 12". You can now either get shocks that fit that compressed length, or adjust your bumpstops with your new shocks in mind.

Doing it this way ensure you get a shock that fits your suspension, rather than getting something that is too long/short and you end up ruining your brand new shock.

If you're so inclined, you can also simply remove a front and rear shock and measure it to get your extended/compressed measurements.
This measures the compressed what about the extended
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Old 08-02-2012, 12:40 PM   #5
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yup - pay attention to compressed shock length and required bumpstop extensions. ignore the "for 'X' lift" crap.
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Old 08-02-2012, 12:45 PM   #6
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Originally Posted by 98 tj sport View Post
This measures the compressed what about the extended
Typically the shocks a TJ owner will be installing when using the stock shock mounting locations will be 10" travel shocks; thus if you're compressed length is ~14" the extended length of the shock will be ~24".

If you want to run longer shocks, say 12" travel shocks, you need to look into outboarding. When you're to the point where you need to outboard, you won't need to ask these questions any more. Search outboarding shocks on somewhere like JeepForum and you'll become very enlightened.
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Old 08-02-2012, 12:51 PM   #7
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Ok thanks helps out a lot I'm looking at getting new shocks to replace the ones that r on it now which were used when I bought the kit and are kinda dented up
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Old 08-02-2012, 01:10 PM   #8
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Quote:
Originally Posted by geiman View Post
Don't bother buying shocks listed for "X inches of lift". Instead do this:

Park on a level surface. Measure from the top shock mount to the bottom mount. Write that number down. Then measure the distance between the bumpstops, making sure to measure from the bump stop cup rather than the end of the soft jounce bumper. Write that number down. Now, by subtracting the second number from the first, you have the compressed length of your shock. Do this for both the front and rear.

So for instance, if your first number was 17" and your second was 5", you know your compressed shock length is 12". You can now either get shocks that fit that compressed length, or adjust your bumpstops with your new shocks in mind.

Doing it this way ensure you get a shock that fits your suspension, rather than getting something that is too long/short and you end up ruining your brand new shock.

If you're so inclined, you can also simply remove a front and rear shock and measure it to get your extended/compressed measurements.
geiman,Thanks for the info.

Ken
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Old 10-29-2012, 01:54 AM   #9
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Quote:
Originally Posted by geiman View Post
don't bother buying shocks listed for "x inches of lift". Instead do this:

Park on a level surface. Measure from the top shock mount to the bottom mount. Write that number down. Then measure the distance between the bumpstops, making sure to measure from the bump stop cup rather than the end of the soft jounce bumper. Write that number down. Now, by subtracting the second number from the first, you have the compressed length of your shock. Do this for both the front and rear.

So for instance, if your first number was 17" and your second was 5", you know your compressed shock length is 12". You can now either get shocks that fit that compressed length, or adjust your bumpstops with your new shocks in mind.
Thanks any tips how i can subscribe to a forum for quick access?

Doing it this way ensure you get a shock that fits your suspension, rather than getting something that is too long/short and you end up ruining your brand new shock.

If you're so inclined, you can also simply remove a front and rear shock and measure it to get your extended/compressed measurements.

thanks how can i subscribe to forums for quick link back to page??
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Old 10-29-2012, 08:28 AM   #10
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At the top of the page under the "Thread Tools" menu you can Subscribe to the thread so that you're notified of any updates. Since you replied you may already be subscribed, but check to be sure.

But if you want an easy way to get back to this thread I your best bet will probably be to either bookmark this page in your web browser, or email yourself a link to the page. I spend a lot of time on different computers and devices, so instead of trying to sync bookmarks I usually email myself the link. That way no matter what device I'm on, I can always pull up my email and search for what I'm looking for. But whatever works best for you.

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