1966 Plymouth Satellite IDLER ARM

[LongR]

Ebay offers 2 different idler arms........which one is correct

I can not see which one is correct without removing it
& I don't want to do all that work without having the correct part to install THX

 

[RemCharger]

It should be the bottom one, stud mount.
But you don't know unless you take a quick look to confirm.
The other one ( newer) has a bolt through it

 

[gtx6970]

Lower one is correct.
Provided your car still has its oem K frame

Top one is 68 - 70