Your search for "atro" revealed the following:
SK46-11200
Spring Eye Shackle Kit Appl. fits Freightliner . Large Bushing Od:1 5/8" *
$265.97
$285.99
MS50-29791
Auxiliary Shim Fit fits Freightliner, Hendrickson, International, Mack, Sterling & Volvo *
$30.68
$32.99
FW51-32011
5Th Wheel Bushing fits Freightliner, International, Mack, Volvo, and Sterling *
$27.89
$29.99