THE MATING SURFACE ON SOME LAMINATED "J" HOOKS MAY BE UNEVEN, OR THE SWING DOWN ARMS UNEQUAL IN LENGTH, EITHER OF WHICH COULD RESULT IN UNEVEN LOAD BEARING OF THE HOOKS.
RiskUNEVEN LOAD BEARING ON "J" HOOKS COULD CAUSE FAILURE OFEITHER HOOK, WHICH RESULTS IN TRAILER SEPARATION AND A VEHCILE CRASH WITHOUTWARNING.
FixREPLACE SWING DOWN ARMS IF THEY ARE UNEQUAL IN LENGTH, AND INSPECT AND REPAIR "J" HOOKS TO ASSURE SYMMETRICAL LOADING.