The most obvious spotting mark of the Model 10 is the sloping front end cap over the windshield, replacing the angular hatch of the Model 05. But this mark can be misleading because many older Model 05s have had the new cap retrofitted. The Model 10 also eliminated the rear windows found on the 05 with a smooth one-piece rear end cap.
Exclusively on the Model 10 is the new Detroit Diesel 6V-92TA turbo-charged engine, providing better fuel economy and power, which could be identified by the large, single rectangular exhaust pipe and by the air scoop mounted just below the last passenger window on the right until the scoop was dropped from later models. Some customers of the Model 10 have chosen the earlier Detroit Diesel 8V-71 engine which can be spotted from the dual exhaust pipe.
Another Model 10 feature is a spectacular instrumental panel with aerospace technology and styling.
Eagles of 1981 and later are identified by the taller driver’s window and passenger entrance door, the tops of which match the top of the windshield.
In 1982 Trailways opened a second plant to manufacture a new two-axle suburban Model 10 at Harlingen, Texas, creating Trailways Manufacturing, Inc. The original Brownsville, Texas plant remained under Eagle International. Trailways placed 19 suburbans in Atlantic City service. Although several other operators experimented with the suburbans, the fact that the axle loading exceeded the legal limit in most states inhibited the popularity of this model.
Underfloor luggage space did not increase when the tag axle was dropped to create the suburban because the space was filled, in most units, with additional air conditioning equipment.
In 1985, the Model 10 drive train was redesigned to eliminate the mitre box, allowing the engine to be set farther to the rear, improving accessibility for maintenance. The weight shift caused by this change made the two-axle version even less practical so the suburban was discontinued and the Harlingen plant was closed.
Other special versions produced were the empty shell model for conversion to custom motor homes and right-hand drive models for operation in Australia and other countries.
The Model 10 remained in production after the 102-inch wide Model 15 was introduced in 1985. Most sales switched to the wider Model 15 but some demand remained for the Model 10 to be used in East Coast tight spots such as New York’s Holland Tunnel. The last Model 10 was delivered in November, 1987 as future orders for a 96-inch Eagle were to be filled with the new Model 20.
Information from the Bus World Encyclopedia of Buses - 1988