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Old 08-28-2010, 07:49 AM   #1
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To drop or not, that is the question!

I have an 03 Rubicon with 5.5" of RE long arm suspension and I'm running 37" tires. I get a lot of bump steer and I've been reading that the TJ does not require a drop pitman arm when lifted. I had an alignment done yesterday and the guy said I needed a drop pitman arm. So, what do Y'all think?
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Old 08-28-2010, 08:28 AM   #2
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At 5.5 inches I would say yes you do need a drop pitman arm to keep all the steering geometry correct (should have come with the lift kit) or get the Currie Currect Lync HD steering system. BTW nice jeep.

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Old 08-28-2010, 08:58 AM   #3
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O gosh.....I first saw the thread title and was like NOOOOOOO don't drop a Jeep (cause I have seen a thread talking about lowering a jeep)
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Old 08-28-2010, 11:00 AM   #4
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Quote:
Originally Posted by RGR42 View Post
I have an 03 Rubicon with 5.5" of RE long arm suspension and I'm running 37" tires. I get a lot of bump steer and I've been reading that the TJ does not require a drop pitman arm when lifted. I had an alignment done yesterday and the guy said I needed a drop pitman arm. So, what do Y'all think?
That pic shows nothing about the steering angles and geometry, try another pic straight on from ground level at the steering set up.

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Old 08-28-2010, 11:07 AM   #5
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I'll trade u drop pitman arm for your stock. I only have 3.5" RE lift and don't need it.
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Old 08-28-2010, 11:09 AM   #6
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Quote:
Originally Posted by RGR42 View Post
I have an 03 Rubicon with 5.5" of RE long arm suspension and I'm running 37" tires. I get a lot of bump steer and I've been reading that the TJ does not require a drop pitman arm when lifted. I had an alignment done yesterday and the guy said I needed a drop pitman arm. So, what do Y'all think?
On MOST 4x4 vehicles, you need to install a dropped Pitman arm when you install a suspension lift. That includes older Jeep CJs and Wrangler YJs with the square headlights.

But where '97 and newer Wrangler TJs are concerned, you do not usually need a dropped Pitman arm with a suspension lift. That is because '97 and newer Wranglers have a much improved steering geometry design.

In fact, you should NOT install a dropped Pitman arm onto a '97 or newer Wrangler for most suspension lifts including your RE 5.5" long-arm suspension. The only reason you would need a dropped Pitman arm is if you also installed the RE 1610 track bar with its required RE 1611 mounting bracket which drops the track bar's upper mounting point.

So if your upper track bar mount is stock and not dropped, which is how the RE1600 track bar installs, absolutely do NOT install a dropped Pitman arm.

But if you upgraded the trackbar to the stronger RE1610 model which includes the RE1611 dropped track bar mount, then you also need a dropped Pitman arm.

The Pitman arm and upper track bar must match... both must be either dropped or both must not be dropped. If one is dropped and the other is not, bump steer is the result.
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Old 08-28-2010, 11:21 AM   #7
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Sick jeep man. Verry nice lookin'.
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Old 08-29-2010, 07:27 AM   #8
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Thanks for all the input. I'm pretty sure I still have stock steering components so it looks like I'll leave the stock pitman arm.....or is it time for another upgrade????
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Old 08-29-2010, 01:50 PM   #9
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Here are 2 pics I just took. Maybe they will help determine what my issues are. I will say having the alignment done did help with the overall handling.
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