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.
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 ...