My coach failed state inspection for the torque arm bushings.  These mount the differential to the frame.  Two lower (adjustable) and one upper (fixed).  I'm having a difficult time locating the correct bushings or even replacement arms.
Mike at Beaver Coach Sales offers replacement arms, but they are VERY expensive.  Has anyone been able to locate a current manufacture for these bushings/arms?
2001 Patriot Magnum chassis.
Thanks in advance.