Lower control arm

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broughj

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Posted a few days ago about an odd upper control arm, now an odd lower control arm. One of the arms does not have what I would call a flange stamped into the pin side stamping. The crude arrows I drew on the attached pictures show the flange on one of the arms and the missing flange on the other. Seems like the flange provides more support and bearing surface for the arm to rotate around the mounting pivot. However, I cannot see any unusual wear in this area on either the steel stamping or on the torsion bar/ pivot pin holder, so perhaps it isn't really necessary. The weld spatter is from me welding a washer in the bushing shell so I could remove it. Has anyone seen a control arm like this before? Trying to decide if I use it or look for a replacement. The control arm has a sway bar tab, so not as many replacement arms available.

Thanks,
John

IMG_4580.jpg


IMG_4581.jpg
 

broughj said:
Posted a few days ago about an odd upper control arm, now an odd lower control arm. One of the arms does not have what I would call a flange stamped into the pin side stamping. The crude arrows I drew on the attached pictures show the flange on one of the arms and the missing flange on the other. Seems like the flange provides more support and bearing surface for the arm to rotate around the mounting pivot. However, I cannot see any unusual wear in this area on either the steel stamping or on the torsion bar/ pivot pin holder, so perhaps it isn't really necessary. The weld spatter is from me welding a washer in the bushing shell so I could remove it. Has anyone seen a control arm like this before? Trying to decide if I use it or look for a replacement. The control arm has a sway bar tab, so not as many replacement arms available.

Thanks,
John

View attachment 1716473444

View attachment 1716473445
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What control arms are your photos? The upper ones have screw in joints and should be threaded. The top photo with the sleeve is a deep cup and no threads. I am a bit confused here. What year and model? It might make a difference.
 
There isn't any rotation between those two parts except when you adjust tension on torsion bars. Once assembled the two parts move together.
 
broughj said:
Posted a few days ago about an odd upper control arm, now an odd lower control arm. One of the arms does not have what I would call a flange stamped into the pin side stamping. The crude arrows I drew on the attached pictures show the flange on one of the arms and the missing flange on the other. Seems like the flange provides more support and bearing surface for the arm to rotate around the mounting pivot. However, I cannot see any unusual wear in this area on either the steel stamping or on the torsion bar/ pivot pin holder, so perhaps it isn't really necessary. The weld spatter is from me welding a washer in the bushing shell so I could remove it. Has anyone seen a control arm like this before? Trying to decide if I use it or look for a replacement. The control arm has a sway bar tab, so not as many replacement arms available.

Thanks,
John

View attachment 1716473444

View attachment 1716473445
Click to expand...

Both types are factory, nothing is missing. I’m honestly not sure which one was early and which one was later but both types were produced.
 
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