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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

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Old May 3, 2020 | 11:15 AM
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Radius Arm

In the process of replacing the passenger side Radius Arm bushing and finding the cotter pin at the bolt that secures it to the chassis has become a problem and if unable to salvage does any member know what years they are interchangeable so I start looking for a replacement.
 
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Old May 3, 2020 | 11:17 AM
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Cotter pins are standard parts at any parts store. Nothing fancy there.
 
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Old May 3, 2020 | 11:28 AM
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Originally Posted by rdixiemiller
Cotter pins are standard parts at any parts store. Nothing fancy there.
Sorry, did not explain the problem very well, the cotter pin is seized in the bolt and currently attempting to remove it with little success. I will continue working on it and hopefully not damage the threads and bolt in the process?
 
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Old May 3, 2020 | 02:24 PM
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Lube the crap out of the nut and stud, and work it back and forth till it cuts the cotter pin off. Then just use a punch to drive out the piece that's left.
 
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Old May 3, 2020 | 02:43 PM
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Originally Posted by EricJ
Lube the crap out of the nut and stud, and work it back and forth till it cuts the cotter pin off. Then just use a punch to drive out the piece that's left.
  • The cotter pin was with the head down and I eventually broke it off, the end piecer was at the top with very little room to work. I tried removing the pin using a drill but slightly damaged the threads on the arm slightly. Took out big bertha torque wrench and as U mentioned worked the nut back and forth and then brought out my IR impact gun pumped the psi up to 150 and walla. Inspected and found I was able to clean the damaged threads using a mini file kit of many shapes and sizes, the nut slightly hangs up at the damaged area but threads well onto the important area.

I be thankin U for the input!!.
 
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Old May 3, 2020 | 03:25 PM
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Dave a set of these will help.
https://www.ebay.com/itm/Lang-3pc-Th...AAAOSw5FBc7wdQ
 
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Old May 3, 2020 | 09:12 PM
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I was just about to say the same thing, thread file. Great addition to the toolbox
 
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Old May 3, 2020 | 11:14 PM
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Originally Posted by Christmas

Oh yea, not familiar with the tool but always looking forward to adding another tool to my arsenal, thank you.
 
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Old May 4, 2020 | 05:02 AM
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Originally Posted by daveengelson
Sorry, did not explain the problem very well, the cotter pin is seized in the bolt and currently attempting to remove it with little success. I will continue working on it and hopefully not damage the threads and bolt in the process?
take a 3/32" drill but and drill the pin out. I have also oiled the nut up and worked it back and forth until the cotter pin shears. Once the nut is out, a drill and/or a pin punch will remove what's left. I use stainless cotter pins for replacements.
 
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Old May 4, 2020 | 08:03 AM
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Originally Posted by rdixiemiller
take a 3/32" drill but and drill the pin out. I have also oiled the nut up and worked it back and forth until the cotter pin shears. Once the nut is out, a drill and/or a pin punch will remove what's left. I use stainless cotter pins for replacements.
I expected the pin would clear out with minimal effort using a drill but found it was not the case and consequently was slightly off, once I removed the arm the cotter pin hole did not go all the way thru, expect because I sheared the pin off, at that point, I drilled out the remainder of the hole, cleaned the threads and fortunately appears I will be able to use the original arm.

Thank you for the input!!
 
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