Hi, The gearbox in my UPVC door has stopped working. Can anyone advise on selec ting a replacement? The backset is 35mm and the distance between the centre s is 92mm. There are many gear boxes on ebay with these specifications - bu t can I find one that can take my existing roller-studded locking strips? O r do I need to replace the entire locking hardware? Here is a photo of the way the stud-strips engage with the gearbox (see my pink arrow):
Is that rectangular engaging-hole universal, or is every lock different? I don't know the make of my gearbox. It has a couple of labels with German te xt (no brand name). There is a number inside the gear box: 12160.
Here is a pic of the complete gearbox and connecting hardware:
Should I just toss the existing hardware and buy a complete new "universal" one? Any recommendations that are cheap but effective?
Thanks for any help.
JD