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Old 05-08-2019, 09:28 AM
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Question Drop Pitman Arm Or Not

Not sure if I should use a drop pitman arm or not. I'm installing a Rubicon Express 4.5" super-flex short arm kit and I already run a Currie Currectlync steering system. Rubicon Express said not to run a drop pitman arm when I contacted them. The install documentation for the Currectlync system states "On vehicles with 0Ē to 4Ē of lift, DO NOT use a dropped pitman arm". So I'm just a half inch over that recommendation meaning I would need to run one? Thoughts?

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Old 05-08-2019, 09:29 AM   #2
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do not use a drop pitman arm
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Old 05-08-2019, 09:30 AM   #3
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Drop Pitman Arm Or Not

If you donít have any steering issues than donít run one.

A drop pitman should only be ran if your are also going to put a drop bracket on the track bar.

I would recommend to stay away from them at that lift hight. Thatís not enough lift to need one.


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Old 05-08-2019, 09:36 AM   #4
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Just say No to DPA.
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Old 05-08-2019, 09:53 AM
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Originally Posted by EmbarkWithMark View Post
A drop pitman should only be ran if your are also going to put a drop bracket on the track bar.
This is a good point. I should add that I have the Rubicon Express RE1610 track bar with it's RE1611 bracket that might drop the track bar some?
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Old 05-08-2019, 09:54 AM   #6
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Basically a line between attachment points on ends of drag link has to be parallel to a line between attachment points on ends of track bar - or else you get bump steer

Thus if you lower track bar upper attachment point only then do you use the drop pitman arm to drop the drag link upper attachment and keep the lines parallel




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Old 05-08-2019, 09:58 AM   #7
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Drop Pitman Arm Or Not

Quote:
Originally Posted by lioneljeeper View Post
This is a good point. I should add that I have the Rubicon Express RE1610 track bar with it's RE1611 bracket that might drop the track bar some?


Likely not.

The track bar is designed to use that bracket because it uses a different joint.

Heres the simple fact. The drop bracket has to match the same amount of drop as a pitman arm. The track bar bracket has to specifically be a drop bracket.

I am really not sure why you want one. Drop pitman arms can introduce a whole set of new issues. If the rig drives fine than donít mess with it. Track bars and drag links need to be as parallel as possible. If you install a drop pitman arm you will most likely introduce a good amount of bump steer with out dropping the track bar an equal amount.
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Old 05-08-2019, 10:04 AM   #8
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Im no fan of RE for several reasons but I have to warn against using their track bar as a safety issue.

https://www.wranglerforum.com/f210/r...d-1611753.html
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Old 05-08-2019, 10:22 AM
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I am really not sure why you want one.
I don't want one if I don't need one. Just making sure that I don't need it, which sounds like I don't.
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Old 05-09-2019, 12:45 AM   #10
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I don't want one if I don't need one. Just making sure that I don't need it, which sounds like I don't.
You don't.
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Old 05-13-2019, 11:58 AM
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How much drop does the stock pitman arm have? I'm looking in my old parts bin and I have two of different drops, but I don't think either is stock. I don't have my Jeep with me to just check myself.
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Old 05-13-2019, 12:22 PM   #12
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Approx 1.5" as best I can tell with a ruler & laying on my back in the garage
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Old 05-13-2019, 12:33 PM
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Approx 1.5" as best I can tell with a ruler & laying on my back in the garage
Thank you. I appreciate you going out to check. Looks like I have two different drop pitman arms in my parts bin. Which is where they will stay.
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Old 05-13-2019, 01:54 PM   #14
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Originally Posted by lioneljeeper View Post
How much drop does the stock pitman arm have? I'm looking in my old parts bin and I have two of different drops, but I don't think either is stock. I don't have my Jeep with me to just check myself.
Here's stock vs. dropped...
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Old 05-15-2019, 12:31 AM   #15
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Why do these kits usually include Dropped Pitman Arms, and even solicit it as a benefit, when they are not needed in 99% of the cases . . . especially for the lift sizes that they are selling? I've never figured that out. They are doing their unknowing customers a dis-service.
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Old 05-15-2019, 01:02 AM   #16
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Because it's assured that not all manufacturers have savvy/qualified engineers on staff or know WTF they're doing on everything they're selling. For example Smittybilt just relies on their Chinese manufacturers, they're just an importer.
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Old 05-15-2019, 01:26 AM   #17
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Were they needed on CJ's and the practice just carried over to YJ's, TJ's and later models?
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Old 05-15-2019, 01:30 AM   #18
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Were they needed on CJ's and the practice just carried over to YJ's, TJ's and later models?
Yes, tjs were the first to not need them, since the previous models were leaf spring and different steering setup.
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Old 05-15-2019, 09:42 AM   #19
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its a giant red flag for any manufacturer to still try to sell DPA's on any coil sprung lift.

if they dont understand something that has been proven over and over again for 20+ years, what else are they screwing up?
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