For 1990-2009 cars only
The NV 4500 is a 5 speed manual transmission with the fifth speed an overdrive ratio. The 5 forward gears and the reverse gear are fully synchronized. The shifting components are located in the shift cover. The shift cover is not rebuildable.
The 5th speed gear is located on the countershaft in the extension housing. There are 3 types of extension housings depending on the vehicle model.
| • | C 3500 HD model is cast iron |
| • | C model is aluminum |
| • | K model is aluminum and does not use a rear seal |
The main shaft varies between models due to the extension housing configurations.
