Pitman arm removal - Chevy and GMC Duramax Diesel Forum
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Old 03-18-2013, 09:22 AM   eBay Motors  #1 (permalink)
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Pitman arm removal

I just finished the ball joints and next is the Pitmen and idler arm does anybody have any how to's on this job/ I looked at it and it seems the cross member is in the way of it. Do you have to move the steering box? Any info would be nice.
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Old 03-18-2013, 09:28 AM   eBay Motors  #2 (permalink)
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U can do everything from underneath
Take the skid pan off
Undo the steering shaft
Undo the lines
Take the centerlink off
Take out the 3 bolts that hold the steering gear in
Remove the steering gear
U will need a pitman arm puller to pull the arm
Reassemble in reverse order
I think that's it
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Old 03-22-2013, 03:02 PM   eBay Motors  #3 (permalink)
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On the Pitman arm I bought a puller and cut the bolt and threaded it in from the opposite side of the puller and used a box wrench to turn the bolt. This allowed me to fit the puller on the pitman arm without unbolting the steering gear box. I have read that you can cause leaks in the lines on the steering box if you unbolt it and start moving it around. There is a thread here somewhere with pics of a modified puller. I will try to find it and post a link.....
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Old 03-22-2013, 03:17 PM   eBay Motors  #4 (permalink)
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And every one I've done ya need to get an impact on there. I haven't broke one loose yet even with a breaker bar. Seems like the pitman arm puller would break before it pops lose without the impact
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Old 03-22-2013, 03:27 PM   eBay Motors  #5 (permalink)
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Pitman Arm removal

There is a picture on the link above of a modified puller. Forgot to mention I cut a slot in the side of the pitman arm to make it easier to remove. If you decide to cut be careful not to get into the splined shaft on the steering gear box.
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Old 03-22-2013, 03:33 PM   eBay Motors  #6 (permalink)
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I'm getting ready to do my ball joints when I replace the centerlink and everything attached to it. Did you just remove the cv shaft to get at the lower ones? Did you end up replacing the whole upper arm or just the upper joints?
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Old 03-22-2013, 05:31 PM   eBay Motors  #7 (permalink)
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I did mine with out a puller. I cut the side of the pitman arm that was facing the front of the truck with A cut off wheel to partially slice it open. But don't cut through. Then use an air hammer with a chisel bit to split it the rest of the way. Never unbolted the steering box either. You have to use what you can. I did the idler arm, inner tie rods and outer tie rods today. Then aligned it. Stabilizer coming on Monday.
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Old 03-25-2013, 03:45 AM   eBay Motors  #8 (permalink)
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I just replaced inner and outer tie rods, pitman arm, idler arm, and idler pivot, all without any air tools. My pitman arm came off quite easy. I bout a $15 puller and a $1 grade 8 5/8x18x2 inch bolt and threaded it backwards for clearance. Keep in mind that the puller will be steady applying pressure to the pitman arm so if yours is stuck on there pretty good, just crank it with your box end wrench and let it sit a few seconds and keep cranking and itll pop right off. Also, there is no need to take your centerlink off to replace your pitman arm. It will have to be disconnected from your centerlink of course but no need for removal of the centerlink.
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Old 03-25-2013, 04:56 AM   eBay Motors  #9 (permalink)
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what brand did you replace them with? where did you purchase the new parts?
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Old 03-25-2013, 05:16 AM   eBay Motors  #10 (permalink)
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i replaced with moog problem solver brand. I ordered all but the idler pivot from rockauto.com and got my pivot from dmaxstore. you'll have to look and see if your pitman arm is a 3 or 4 spline before u order it. the nut holding it on is a 1 5/16". just take it off and see how many splines it is.
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