Don't know if any help as you haven't mentioned age and engine size but some 1.9s used the Peugeot XUD engine and presumably gearbox also.
The bigger 2.5/2.8 was a Fiat Sofim engine and gearbox also used in Citroen Relay and Peugeot Boxer models.
If you give more detail some Forum members will be able to identify the box and maybe from a photo. My knowledge is more general Motortrade retired after 55 years