Topic: Radiius Arm Ball-Should it have a rubber cover?


RAK402    -- 10-15-2020 @ 3:47 PM
  I want to get the rattles and squeaks out of my 1940 Fordor.

I remember someone telling me, years ago, that the ball that is attached to the two radiius arm stays should have a rubber cover.

Is this correct?

In the 45 years I have owned and driven the car, I have never taken this apart.


kubes40    -- 10-15-2020 @ 4:26 PM
  There is a ball cover at the end of the "wishbone". It can be replaced with the axle assembly in the car.
Remove the two bolts that hold the cover on at the end of the wishbone.
Pull the wishbone down and wedge a 2" x 4" between the frame and axle.
Remove the old rubber ball - what's remaining of it.

To install the new ball, I soak it in boiling water for a few minutes and spray the inside with glass cleaner.
The glass cleaner acts as a lubricant to aid in the installation.
Do not use grease or silicone.



Mike "Kube" Kubarth


RAK402    -- 10-15-2020 @ 11:37 PM
  Thank you very much, sir!

I appreciate the rapid answers and excellent information!


RAK402    -- 11-10-2020 @ 9:02 AM
  I have no lift, so I will be doing this under the car with jackstands (I think I am too thick around the middle to slide under without raising the car up).

Do I need to do anything to support the wishbone? Will it try to drop down when I removed the cover on the ball mount?

Thank you.


kubes40    -- 11-10-2020 @ 9:30 AM
  Unbolting the wishbone at the ball end will allow the wishbone assembly to "drop".
PLEASE place quality jack stands beneath the front axle.
I also leave my floor jack beneath the center of the axle as a "back up" of sorts.
Yeah, even after all these years (decades) I still tend to play it very safe.
Once you have the ball cover removed, you can pull the end of the wishbone down. I place a 2" x 4" piece of lumber in there to hold it away from the frame enough to R&R the rubber cover.

Mike "Kube" Kubarth


RAK402    -- 11-10-2020 @ 3:54 PM
  Thank you sir!

I greatly appreciate the advice and will follow it to the letter!



RAK402    -- 01-15-2021 @ 2:52 PM
  I have now replaced that evil, little &*!@#! rubber ball!

Thank you Mike, for the advice-soaking it in boiling water with a little dishwashing soap worked!

Oddly enough, the orgiinal ball was almost completely in tact and still soft.

I suspect that this is the type of task they give people to do in the place of eternal punishment...

This message was edited by RAK402 on 1-15-21 @ 2:53 PM


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