Re Aasemble the GearboxAll parts should be clean with seals and bearings replaced if required. Mount the gearbox halfcase with the bolt threads in a vice clamping by the suspension arm. Install the crown wheel, middle gear and then drive gear. Apply loctite master gasket or similar to the sealing surface. Put in 200ml SAE90 gear oil. Put top half on and match using 2 x 5mm drill shanks.
Install and tension bolts.