2000 Astro Van Pitman Arm Nut Size... - Chevelle Tech
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Old Sep 12th, 19, 11:36 PM Thread Starter
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2000 Astro Van Pitman Arm Nut Size...

I have the unfortunate job of changing out the power steering gear on my mom's 2000 Astro van. Does anyone here know what size wrench/socket I need to get the pitman arm nut off with?? The Astro van site I am on has not been much help.

I also discovered once I had everything removed to get to the steering gear (air box, fan shroud, hoses, etc.), that the stupid power brake booster is also leaking. I think I invented some new swear words today...

1971 Malibu, factory buckets/full gauges/console, 377 roller cammed small block, Turbo 400, 3.42 10 bolt posi (Buick), - All your base are belong to us.
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Old Sep 12th, 19, 11:45 PM
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Re: 2000 Astro Van Pitman Arm Nut Size...

11/4 I think, you will likely need a puller for that arm as well.
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Old Sep 12th, 19, 11:47 PM Thread Starter
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Re: 2000 Astro Van Pitman Arm Nut Size...

Quote:
Originally Posted by slowmo55ss View Post
11/4 I think, you will likely need a puller for that arm as well.
My 1 1/4" wrench is too small.

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Old Sep 13th, 19, 1:50 AM
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Re: 2000 Astro Van Pitman Arm Nut Size...

Sorry, been awhile, going from memory.
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Old Sep 13th, 19, 5:37 AM
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Re: 2000 Astro Van Pitman Arm Nut Size...

36mm if I remember correctly.


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Old Sep 13th, 19, 8:06 AM
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Re: 2000 Astro Van Pitman Arm Nut Size...

Quote:
Originally Posted by slowmo55ss View Post
...you will likely need a puller for that arm as well.
And a torch, and a hammer, and planets to align properly, good luck!

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Old Sep 13th, 19, 8:44 AM
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Re: 2000 Astro Van Pitman Arm Nut Size...

It took a 40 ton hydraulic press to remove the Pitman arm when I did my 70 El Camino steering box. It just laughed at a 20 ton press.

Rick

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Old Sep 13th, 19, 6:13 PM
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Re: 2000 Astro Van Pitman Arm Nut Size...

It's 1 5/16
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Old Sep 13th, 19, 8:42 PM Thread Starter
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Re: 2000 Astro Van Pitman Arm Nut Size...

Quote:
Originally Posted by Andy's Auto Repair View Post
It's 1 5/16
Thanks. I found that out when I finally got the steering gear out of the vehicle (you have to remove it before you can take the pitman arm off). I just happened to have a socket that size, along with a 1/2" adapter. I actually took both steering gears to a machine shop that I use for brake rotors and drums. We got it removed from the old, installed on the new one, and I torqued it down (unfortunately, this resulted in my Craftsman Digitork torque wrench no longer clicking).

I got everything reinstalled and it all works (I had to change out the power brake booster, too, as it was leaking). So, new steering gear, new power brake booster, and 3 new power steering hoses. The down side is that the hose that goes from the booster to the steering gear is seeping just a tiny bit at the connection point. I am going to wait to put a new o-ring on it until it gets quite a bit cooler during the day. But, it is working, with no major leaks - I am calling it a victory.
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Old Sep 13th, 19, 9:17 PM
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Re: 2000 Astro Van Pitman Arm Nut Size...

Quote:
Originally Posted by WakkoWarner View Post
Thanks. I found that out when I finally got the steering gear out of the vehicle (you have to remove it before you can take the pitman arm off). I just happened to have a socket that size, along with a 1/2" adapter. I actually took both steering gears to a machine shop that I use for brake rotors and drums. We got it removed from the old, installed on the new one, and I torqued it down (unfortunately, this resulted in my Craftsman Digitork torque wrench no longer clicking).

I got everything reinstalled and it all works (I had to change out the power brake booster, too, as it was leaking). So, new steering gear, new power brake booster, and 3 new power steering hoses. The down side is that the hose that goes from the booster to the steering gear is seeping just a tiny bit at the connection point. I am going to wait to put a new o-ring on it until it gets quite a bit cooler during the day. But, it is working, with no major leaks - I am calling it a victory.
Did you forget the idlers?
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Old Sep 13th, 19, 11:34 PM Thread Starter
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Re: 2000 Astro Van Pitman Arm Nut Size...

Quote:
Originally Posted by Andy's Auto Repair View Post
Did you forget the idlers?
I replaced both idler arms about a year ago with the Moog problem solver units.
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1971 Malibu, factory buckets/full gauges/console, 377 roller cammed small block, Turbo 400, 3.42 10 bolt posi (Buick), - All your base are belong to us.
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Old Sep 14th, 19, 12:02 AM
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Re: 2000 Astro Van Pitman Arm Nut Size...

I hate working on Astro vans. The company I worked for had several, one an AWD model. Nothing is easy to get to.

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Old Sep 14th, 19, 12:33 AM Thread Starter
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Re: 2000 Astro Van Pitman Arm Nut Size...

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Originally Posted by Philip View Post
I hate working on Astro vans. The company I worked for had several, one an AWD model. Nothing is easy to get to.
It is the bane of my existence. She is on a fixed income, so I have to keep it running as long as I can. The engine is fine, the transmission does its job, and the AC is cold. All of the interior plastics, however, are deteriorating. I may not be able to find that stuff much longer.

1971 Malibu, factory buckets/full gauges/console, 377 roller cammed small block, Turbo 400, 3.42 10 bolt posi (Buick), - All your base are belong to us.
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Old Sep 14th, 19, 8:24 PM Thread Starter
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Re: 2000 Astro Van Pitman Arm Nut Size...

Update: I popped the hood this morning and checked that connection - it was dry. All of the other connection points were dry as well. So, I think it may have been residual fluid on the thread from when I put the hose in. I will keep an eye on it, but I think it is leak free (for now).
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1971 Malibu, factory buckets/full gauges/console, 377 roller cammed small block, Turbo 400, 3.42 10 bolt posi (Buick), - All your base are belong to us.
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Old Sep 14th, 19, 11:12 PM
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Re: 2000 Astro Van Pitman Arm Nut Size...

Damn Brian, we just traded in our 2009 Grand Caravan with 171000 well kept miles on it and even though you live far away, it would have been a good one to get for your Mom. I did all the maintenance to it except the water pump, engine gaskets and front struts, they were done under warranty back in march. always a day late and a dollar short!!

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