Having a little trouble finding a drawing but when I install the radiator support is it washer-rubber bushing-frame-rubber bushing-radiator mount-metal washer?
Hopefully that makes sense.
I am not sure how well my radiator support that worked with the small radiator will work with the slightly larger radiator I bought to support the automatic transmission cooling.

 

Radiator support is 16138 .. 00154 & 00155 are rubber insulators also used as cab mounts.

 

Yes, insulators sandwich the frame. Core atop one or more washers to level. Bolt and washer thru core flange and the insulator assembly.