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Old 01-24-2012, 04:34 PM   #1
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Coils Stiffness?

How do know how stiff your coil springs are? I'm curious because I bought my jeep with the lift, tires, and wheels already installed

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Old 01-24-2012, 04:37 PM   #2
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The factory coils have a tag on them, with coresponding number 14-19(?), the higher the number the stiffer your springs. If it was a coil lift which was put in aftermarket it's a good bet the the springs are stiffer than the stock springs were.

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Old 01-24-2012, 06:04 PM   #3
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The brand is teraflex
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Old 01-24-2012, 06:05 PM   #4
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18 is the spring stiffness, last 2 numbers before the letters on the part number.
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Old 01-24-2012, 06:06 PM   #5
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Thanks!
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Old 01-24-2012, 06:31 PM   #6
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Old 01-24-2012, 06:42 PM   #7
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Quote:
Originally Posted by IP0VV3R
The brand is teraflex
Ah you have TF coils.

One size fits all I think. Now I'm not talking about lift height.

Some lift manufactures have different rates.

But I think TF is all the same.

Stock springs will differ from jeep to jeep.
That's where all the "spring rate" and " rubi coil" talk comes in.

You just trying to figure out your lift height?
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Old 01-24-2012, 06:48 PM   #8
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Quote:
Originally Posted by kjeeper10

Ah you have TF coils.

One size fits all I think. Now I'm not talking about lift height.

Some lift manufactures have different rates.

But I think TF is all the same.

Stock springs will differ from jeep to jeep.
That's where all the "spring rate" and " rubi coil" talk comes in.

You just trying to figure out your lift height?
Dealer said 2" but I'm thinking 2.5"
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Old 01-24-2012, 06:50 PM   #9
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Quote:
Originally Posted by IP0VV3R

Dealer said 2" but I'm thinking 2.5"
TF 2.5 is a popular lift.

I have it in a box awaiting install

Black coils. I don't recall seeing a tag on them though
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Old 01-24-2012, 07:02 PM   #10
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Quote:
Originally Posted by IP0VV3R View Post
The brand is teraflex
Tag looks like a mopar P/N, 52126318AB.

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Old 01-24-2012, 07:07 PM   #11
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Quote:
Originally Posted by kjeeper10 View Post
TF 2.5 is a popular lift.

I have it in a box awaiting install

Black coils. I don't recall seeing a tag on them though
No tag on mine either.
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Old 01-24-2012, 07:13 PM   #12
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I'll get another pic tomorrow. It's too dark now
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Old 01-25-2012, 05:59 PM   #13
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Here's the pics of the suspension and lift kit
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Old 01-25-2012, 06:07 PM   #14
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Photo of the tags on my springs when my Jeep was new. See post #6.

Mine (on that side) was a 16. You need to check all four, as the stiffness sometimes differs from one side to the other. And sometimes the tag is tucked up in the coils, or gone.

Lift Types???
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Old 01-25-2012, 06:32 PM   #15
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Quote:
Originally Posted by IP0VV3R View Post
Here's the pics of the suspension and lift kit
i believe thats a budget boost with stock coils
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Old 01-25-2012, 08:58 PM   #16
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Quote:
Originally Posted by cousincleatus View Post
i believe thats a budget boost with stock coils
I concur.
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Old 01-25-2012, 09:01 PM   #17
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Quote:
Originally Posted by daggo66

I concur.
Do you think they might be Rubi take offs
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Old 01-25-2012, 09:27 PM   #18
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Quote:
Originally Posted by IP0VV3R

Do you think they might be Rubi take offs
What are the rears?
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Old 01-25-2012, 09:31 PM   #19
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Quote:
Originally Posted by IP0VV3R View Post
Do you think they might be Rubi take offs
It doesn't matter since there is no such thing as Rubicon coils. You have one step from the stiffest front coils.
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Old 01-25-2012, 09:34 PM   #20
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Quote:
Originally Posted by kjeeper10

What are the rears?
I'll check tomorrow. I didn't realize they would be different
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Old 01-25-2012, 09:36 PM   #21
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Quote:
Originally Posted by IP0VV3R

I'll check tomorrow. I didn't realize they would be different
What D said ^^

But if the coils were upgraded. The rears will be upwards of 60. Guessing 58-59
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Old 01-27-2012, 04:39 PM   #22
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Here's a pic of the rear driver side coil

Attachment 93221

The full number is 4457
If I understand correctly, the stiffness is 57
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Old 01-27-2012, 04:45 PM   #23
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this is one of his favorite topics, is it not?

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