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Old 01-24-2010, 08:01 AM   #1 (permalink)
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Pitman Arm is too short: lets start a list of OEM lengths for future reference:

I just discovered that the pitman arm on my XJ is about 3/4" too short, and won't give me full steering angle at the wheels.

I prefer not to move the mounting location on the knuckle, because I built the track bar around the current high steer arm.

Aside from building a custom pitman, have any of you found an OE application that has a radius of about 6.25"?

Lets start a list of OEM pitman arms and their dimensions:

XJ/TJ/YJ: 5.5" radius.

CJ:~5.5"




FSJ (J20): ~6.75"



I have an astro arm here too, but it's outside and it's raining...

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Old 01-24-2010, 08:44 AM   #2 (permalink)
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Think a grand waggy arm and a J20 arm is the same length?

(If so, fawk, that means I have to relocate the front axle or seriously modify the front frame again if I want the turn radius back.)
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Old 01-24-2010, 08:46 AM   #3 (permalink)
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I THINK so, but I'm not certain.
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Old 01-24-2010, 09:46 AM   #4 (permalink)
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What about spline count and the degree of taper? Or are you just looking for a certain steering box?
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Old 01-24-2010, 10:54 AM   #5 (permalink)
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the arm you want is from a '70s camaro or firebird ( the smokey and the bandit ones ) dead flat and 6.3 hole to hole the spline count and is the same for nearly all "automotive" steering boxes because they were all made by saginaw , the only difference is Ford ( nobody ever swaps ford steering stuff in to there truck , fords are all jacked up and weird )
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Old 01-24-2010, 10:55 AM   #6 (permalink)
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the arm you want is from a '70s camaro or firebird ( the smokey and the bandit ones ) dead flat and 6.3 hole to hole the spline count and is the same for nearly all "automotive" steering boxes because they were all made by saginaw , the only difference is Ford ( nobody ever swaps ford steering stuff into there truck , fords are all jacked up and weird )
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Old 01-24-2010, 11:36 AM   #7 (permalink)
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the arm you want is from a '70s camaro or firebird ( the smokey and the bandit ones ) dead flat and 6.3 hole to hole the spline count and is the same for nearly all "automotive" steering boxes because they were all made by saginaw , the only difference is Ford ( nobody ever swaps ford steering stuff in to there truck , fords are all jacked up and weird )
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Originally Posted by AIRZUKI View Post
the arm you want is from a '70s camaro or firebird ( the smokey and the bandit ones ) dead flat and 6.3 hole to hole the spline count and is the same for nearly all "automotive" steering boxes because they were all made by saginaw , the only difference is Ford ( nobody ever swaps ford steering stuff into there truck , fords are all jacked up and weird )
We heard you the first time Personally on my YJ I'm running a FSJ pitman arm, although i had to cut off the upper track bar mount for clearance. There is some Ford pitman arm you can use too off a pickup truck but I can't remember what it is off the top of my head.
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Old 01-24-2010, 12:18 PM   #8 (permalink)
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For people that live in SoCal Lee Power Steering has a few 55gal. drums of pitman arms. It can come in handy when you are looking for something strange.

http://lee-powersteering.com/
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Old 01-24-2010, 03:28 PM   #9 (permalink)
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What about spline count and the degree of taper? Or are you just looking for a certain steering box?
I have a reamer, so the hole isn't an issue, just the splines, and the radius.

Drop/ flat is SORT of an issue; the stock XJ arm has about 2" of drop, so I need to come close to that.
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Old 01-24-2010, 04:00 PM   #10 (permalink)
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A 99-04 Jeep Grand Cherokee Wj pitman arm is what you need. 6.25" c-c It's what I run. Chevy astro van pitman arms are 6" two styles one is flat and one drops about an inch.
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Old 01-24-2010, 04:59 PM   #11 (permalink)
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A 99-04 Jeep Grand Cherokee Wj pitman arm is what you need. 6.25" c-c It's what I run. Chevy astro van pitman arms are 6" two styles one is flat and one drops about an inch.

REALLY!
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Old 01-24-2010, 05:45 PM   #12 (permalink)
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If you want about 1 1/2" of drop and you're running a heim on the pitman arm of the drag link or you have a reamer you can also use a scoutII pitman arm. it is 9" center to center but it looks like a chunk of bar stock so you can cut and drill it wherever you like.
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Old 01-24-2010, 06:44 PM   #13 (permalink)
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REALLY!
Custom, WJ, Stock TJ



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Old 01-24-2010, 06:49 PM   #14 (permalink)
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Blaine with the win!

I guess I need to locate a WJ arm.

OEM solution is always a good thing.


Thanks guys!

EDIT:

If anyone has one, I need a 99-04 Jeep Grand Cherokee WJ pitman arm

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Old 01-24-2010, 08:33 PM   #15 (permalink)
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Blaine with the win!

I guess I need to locate a WJ arm.

OEM solution is always a good thing.


Thanks guys!

EDIT:

If anyone has one, I need a 99-04 Jeep Grand Cherokee WJ pitman arm
I use them quite a bit building custom steering. I've found Crown to be equivalent in quality to OEM and a fair bit cheaper. My partner has also ordered them online from the Jeep specialty houses like Jeepsareus and they run about 35 bucks or so going that route for OEM.

Be warned though, I bought one from auto parts warehouse 2 years ago and I'm still getting spam from those bastards.

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Old 01-30-2010, 06:40 AM   #16 (permalink)
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Well, MUCH to my surprise the WJ pitman arm was sitting here last night when I rolled in.

Measured out to ~6.5" center to center:



Approximately 2" of drop:



I'm going to ream this for one ton tie rod ends, and install it to check if it works with the existing bracket.

If not, I MIGHT tackle the new bracket tomorrow as well.
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Old 01-30-2010, 08:09 AM   #17 (permalink)
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I'm going to ream this for one ton tie rod ends, and install it to check if it works with the existing bracket.
And then you are going to use the 1/2 to 3/4-ton 7/8" tie rod ends that everyone else runs

Were you not getting full steering in both directions or just one?
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Old 01-30-2010, 08:56 AM   #18 (permalink)
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good info, my yj cant turn to the stops with the stock arm. Guess I'll see about picking up one of those wj arms.

I had to adjust the drag link so that it would get equal steering in either direction. which put me about 3/8" away from the knuckle stops.
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Old 01-30-2010, 09:41 AM   #19 (permalink)
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will a scout arm fit a sag box?
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Old 01-30-2010, 09:48 AM   #20 (permalink)
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will a scout arm fit a sag box?
Well, a scout box is a sag, box, so yes.
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Old 01-30-2010, 10:21 AM   #21 (permalink)
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cool. Thanks Erik.
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Old 01-30-2010, 10:22 AM   #22 (permalink)
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And then you are going to use the 1/2 to 3/4-ton 7/8" tie rod ends that everyone else runs

Were you not getting full steering in both directions or just one?
I adjusted the drag link so the arm was centered in it's travel, and I had ~1/2" left at either stop on the knuckle.

The radius (King Pin Centerline to tie rod hole) of the PSC high steer arm is 6.25", while the OEM XJ pitman arm is 5.5".

This should allow full steering angle in both directions.

I'm not sure what you are getting at with your comment on the tierods.
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Old 01-30-2010, 10:31 AM   #23 (permalink)
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I think he's shaking his head because you called them "1-ton" ends, when the same ends are used on 1/2-tons.

The drag link ends have a bigger taper than the tie rod ends, but that doesn't have anything to do with their "tonage."
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Old 01-30-2010, 10:32 AM   #24 (permalink)
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chevys often have problems in one direction and clocking the pitman arm helps.

If you are using 7/8" TRE's they aren't 1-ton (which are 1" like mine). Jeep guys just like to exaggerate because they have small penis syndrome.
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Old 01-30-2010, 10:39 AM   #25 (permalink)
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I wasn't aware these parts weren't one ton.

Thanks for making me aware of this.

Dan, do you remember me? We talked at the KOH finish line for about an hour last year...


EDIT: I can't clock the pitman, there are larger splines that only allow installation in one of four positions.

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