I have an intermittent rattle in front end, sometimes you can feel it in the steering wheel.
I lifted the front end today and lifted the axle off the ground.
It looks like I have some play in the bushings for the arms that attach to the axle.
I'll start making calls tomorrow to see if I can locate parts.
So far no luck.
Rockwell (Meritor) supplied the axle beam but not the suspension.
Newell thinks TRW supplied the control arms, but TRW tech support has no records.
I was hoping to get a part # and order parts in advance of tear down to avoid significant downtime in case there is difficulty matching a part.
On both the 77 coach and the 93 coach I believe the suspension you are referring to was supplied by Ridewell, it is RAS-227 if I recall correctly. If so the bushings are readily available though changing them requires a thorough alignment.