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Old Aug 24, 2007 | 07:48 PM
  #1  
PeterM66's Avatar
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Radius arm bushings

So, I finally decided to change the radius arm bushings on my 90 FSB. Not as easy as I had hoped. As I was grinding, banging, heating, cursing at, the rivets off the radius arm brackets, 5 pounds of rust fell off the truck. My brackets are shot, rusted through in some spots. So I purchased new brackets made by MOOG. I also bought new bushings made by MOOG. My question is this: the new bushings came 2 large and 2 small with 2 spacers and 4 end caps. In what order do they go on? It also looks as though there is some play when inserting the end of the bushings into the hole in the bracket. This is only when test fitting, I have not put them on and tightened them yet. Any advice would be appreciated. Also, some body mentioned to me about using a lubricant on poly bushings. Any thoughts? MOOG Bushings are part# MOG K80007. Thanks
 
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Old Aug 25, 2007 | 12:12 PM
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lostin90s
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From: Central PA
As for which first I can't remember .Think large is on axle side mount . But the ones I did were loose till tightened down. And yes lube them . They can squeak and drive you nuts

Good luck
 
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Old Aug 26, 2007 | 10:48 AM
  #3  
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cfrives3
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From: shawnee KS
The moogs I have always bought have had directions with a pic. I have 4 trucks with them so I have done them a couple times...... Stop by where you got them and ask to look in another box for the directions. Although I remember thinking the last time I did those that the directions didn't look right to me. Part of the reason I wanted to read this thread actually.
 
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Old Aug 27, 2007 | 01:51 PM
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broncosoldier
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yup big ones should go to the axle side. i just replaced mine with some poly ones, mine were junk.
 
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Old Aug 27, 2007 | 09:45 PM
  #5  
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Now that I think about it, It was the way they showed the washers went-in the directions- that threw me. The bushing part I agreed with.
 
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Old Aug 28, 2007 | 10:42 PM
  #6  
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Don't forget, you may need to re-use the original nylon spacers with the bushings. And I use silicone spray to lube the poly's, keeps them from creaking and groaning, JSM84
 
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Old Sep 5, 2007 | 10:51 PM
  #7  
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Talking

Thanks for the replies everyone. I ended up going back to the auto store and looking through the MOOG catalog. The proper order is: (Working from the front of the truck back) cup shaped washer, large bushing, bracket, spacer, small bushing, washer, nut
 
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Old Sep 5, 2007 | 11:00 PM
  #8  
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Thanks for the replies everyone. I ended up going back to the auto store and looking through the MOOG catalog. The proper order is (working from the fron back) cup shaped front retainer, large bushing, bracket, spacer, small bushing, washer, nut.
 
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Old Sep 18, 2007 | 10:35 AM
  #9  
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toolman
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I have a question along these lines.....one manual I looked at said something to effect of ' Don't start this without a 350ft/lb torque wrench ' Is this only if you're removing the axle ?? The Haynes I have didn't make it look all that difficult. Also, the sets I'm seeing at Autozone range from rubber with a 3mo warrenty for around $7.00 to a lifetime poly set marked for 4x4 use in the mid $20's Am I looking at the right items ?

Thanks !

-Scott in Spokane
 
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Old Sep 18, 2007 | 11:52 AM
  #10  
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mprice
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From: Chicagoland
Originally Posted by toolman
I have a question along these lines.....one manual I looked at said something to effect of ' Don't start this without a 350ft/lb torque wrench ' Is this only if you're removing the axle ?? The Haynes I have didn't make it look all that difficult. Also, the sets I'm seeing at Autozone range from rubber with a 3mo warrenty for around $7.00 to a lifetime poly set marked for 4x4 use in the mid $20's Am I looking at the right items ?

Thanks !

-Scott in Spokane
My 5 ft cheater bar stood in perfect for the 350# torque wrench. Some have approached this by counting the exposed threads and then reassembling it the same way. It took everything I had to get it off so I gave it everything I had putting it back together.

Some prefer the poly; some prefer the rubber. I think for this application the rubber is better since you really do want some give there.

It's not a complicated job. It's only five fasteners, really. The catch is that one is the great big nut on the end of the radius arm that on mine took 10 minutes worth of MAPP torch and 2000 ft/lbs to break loose and the other four are heavy, solid rivits.

Calvin
 

Last edited by mprice; Sep 18, 2007 at 11:58 AM.
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Old Oct 19, 2007 | 10:01 PM
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When tightening the nut on the rear of the radius arm...should it bottom out? I had a hard time determining when it was tight enough. The service manual gives an 80-100 ft-lb torque but I couldn't tell when I had it that tight. So about how much of the arm threads should be sticking out past the nut?

TIA
 
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