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-   -   AEV Premium bumper requires new springs? (http://www.wranglerforum.com/f274/aev-premium-bumper-requires-new-springs-146727.html)

glowingghoul 03-16-2012 11:19 AM

AEV Premium bumper requires new springs?
 
Due to a damaged stock bumper I mentioned in another thread, I'm now looking at upgrading my 2012 Rubi to an AEV Premium.

AEV suggestes that the front will drop because of the extra weight, and that most customer upgrade springs to compensate. I'm not installing a winch(which they factor into the "extra 165 pounds", so will new springs really be necessary?

Opinions please.

kbwwolf 03-16-2012 11:29 AM

Depends on what your current spring rates are. Look at your springs and you'll see a tag on top with a series of #'s and letters. The last two #'s are the spring rate...if you've got 17-19's up front, and 58-60's rear, you've got fairly stiff springs for a stock Wrangler.

However, you'll lose probably 1/2" or so by adding the AEV bumper, and more if your springs are of the weaker variety.

You can buy stiff stock springs (19/60) from Mopar for ~ $140, IIRC. Another option is to purchase a TeraFlex Leveling kit, which will raise your Jeep 2" in front and 1" in rear (via spacers), and eliminate your Jeep's rake.

Unless you plan on adding a more comprehensive lift in the future, I'd do one of those two things.

See post #5 in the link below for a photo of the tag on your springs:

Is it worth it?

MTH 03-16-2012 11:55 AM

What's it weigh? 80 pounds or so? Do you have any neices/nephews/kids that weigh around 80 pounds? Go get one to sit on your current bumper and look from the side. That's how much it will sag.

If that--in addition to the potential extra "nose dive" on short stops--bothers you, you need new springs or at least spacers.

PieFace 03-16-2012 01:31 PM

I contacted AEV asking this exact same question, I dont want a lift, but I do want that bumper and didnt want the nose dragging on the ground. They told me that it wouldnt be a noticeabe difference, and that the call of duty jeep with the aev bumper dosent have special springs. (compared to my rubi)

Im planning a .75 inch spacer in the future to level out my jeep, im sure that will be plenty to counter any loss of height at the bumper.

Especially if your not dumping a winch on it.

KarlG 03-16-2012 07:14 PM

Quote:

Originally Posted by PieFace (Post 2146986)
I contacted AEV asking this exact same question, I dont want a lift, but I do want that bumper and didnt want the nose dragging on the ground. They told me that it wouldnt be a noticeabe difference, and that the call of duty jeep with the aev bumper dosent have special springs. (compared to my rubi)

Im planning a .75 inch spacer in the future to level out my jeep, im sure that will be plenty to counter any loss of height at the bumper.

Especially if your not dumping a winch on it.

AEV has stated before the difference in height is @ 1/16" which is actually about the difference in the spring tolerance range during manufacture. Not the difference between different Mopar springs but the differences in height between similar rated springs from Mopar.


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