The Newage 85M gearbox fitted to Thwaites 3 Tonne straight and Thwaites 3 Tonne swivel is a simple non-synchromesh gearbox with 3 forward and 1 reverse gear. The design of the Newage 85M gearbox did not change for years and was available in several different builds including with a built in dropbox. There are literally thousands of Newage 85M gearboxes in circulation and since Newage went into administration PES have manufactured the internal components using the original Newage suppliers to ensure the continuity of parts for your Thwaites 3 Tonne straight and Thwaites 3 Tonne swivel dumper. Most Newage 85M parts are available, apart from castings, from stock for next day delivery or PES are able to offer complete service exchange Newage 85M gearboxes from stock or can quote to repair your existing Newage 85M gearbox in your Thwaites 3 Tonne straight and 3 Tonne swivel dumper.