Thanks Shakinna,
No, I cannot offer you any such guarantee.
What I would suggest you do is to ‘rig up’ your original switch - not connected into the gearbox, but with cables connected, and do the same test as you did with the new one, and compare the amount of travel necessary to get the reverse lights to work - if they do.
An easier way to check it would be with a multimeter set on ohms and just check for continuity when the plunger is depressed.
Please let us know how you get on.
Kind regards,
Gareth.