My LAST PAIR OF THESE> One pair of upper pivot control arms part numbers 314-9642 and 314-9643. The only difference I noticed between the two part numbers is the small threaded hole on the side of the bar is on opposite sides. These have rust as pictured but are in new unused condition.
They fit the following models 1960 through 1962 model 10
1960 to 1961 model 20 - 80
Right rear left front and left rear right front.