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.
Fuhr genuine gearbox with split spindle function and available with a 35mm backset.
Please note that there has been two variations of latch sizes.Older version is 28mm high and latest version is 33mm...