Be careful to use the correct parts when replacing the front shocks  for 

58-63 Rambler American,

and  1958-61 Rambler, Rebel, Classic, and Ambassador.

 There is a chance of breaking the lower control arms with the wrong shocks.

 The factory set up used 2 steel spacers that fit inside a rubber bushing:

 these pieces with their serrated edges lock into place when torqued to 110 - 125 ft lbs.

thank you to Doug Galvin @ Doug Galvin's AMC for the information.