Originally Posted by Txice
Mr. D please share your knowledge re: RR4R chassis. We are planning on making an 300 mile round trip to look and drive the Ambassador. Your "understatement" gives me pause. Please elaborate. Mike
Mr. D hasn't answered so I'll give it a go.
Here is a long thread on the Roadmaster forum:
South Carolina newbie checking in...
Long story short. Monaco/Roadmaster built a 4 airbag chassis (RR4R) carried slightly different designations early on. They started building the rear suspension in house in '02. The trailing arms were under designed and started failing at a high rate. Depending of the suddenness of the failure, the rear axle was essentially free floating & the driver could lose control not to mention the damage to the coach.
Over time an up graded set of trailing arms were introduced but they may not have solved the problem. Several years ago, Source Engineering manufactured a set of trailing arms with plenty of strength and the problem now has a solution. I believe the Source trailing arm kit installed is about $3500. They also sell a ride enhancement kit which improves the harsh ride of the 4 bag chassis.
Here is a link to Source:
If you search "Trailing Arms" in the Roadmaster forum you will get lots of reading material.
Full time since '07