Fullex XL gearboxes are available in 35mm and 45mm backsets in single, double and split spindle configurations but their dimensions are all the same. They measure 227mm high by the backset + 15mm. The...
Kenrick Excalibur gearboxes are available with either a single or double spindle (follower) gearbox. They will have centres at either 92mm or 62mm and 92mm. Both followers are sprung so you have the ...
KFV cases are riveted onto strips and need to be drilled and then re-riveted. These cases will only replace newer KFV locks as older versions have different connectors.