Looking at upgrading my 1800 in my 75 Bay to a new 2lt but was told that a 2lt gearbox would be better suited. The 1800 gearbox will fit but has different gearing. Has anyone put a 2lt motor in and used the original 1800 gearbox. Suggestions welcomed. Will post some pic's of my van soon. Currently she is stripped out and is getting all new seats and she will look very pretty when it is finished.