Having some problems fixing my rear brakes. I could not find the 300mm discs for less than a new mortgage and given that I needed new calipers too (handbrake seized) I decided to make the switch to 326mm discs. Now I am unsure if the mounting brackets for the installed 326mm disc will work on the 'designed for 300mm' set up. I thought I bought the caliper and bracket for 326mm but it does not seem to fit. Wondering if the bolt position for connecting the bracket onto the main assembly is in a different spot for the 300mm and 326mm brake systems? Or are the brackets offset more from bolt to disc surround?
Any help appreciated. This might be more confusing than anything.

 

knuckles are all have same spacing on everything except brembo cars.

 

see

https://parts.jaguarlandroverclassic.../brand/jaguar/

I would look for a XF 250 desiel which is being broken and get the 326mm bits from that.

There does seem to be a difference in the part numbers between 300, and 326mm

Seasons Greetings? Or Bah Bumbug!! Which ever??