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					Originally Posted by Kevin H  According to an invoice from Bristol Cars when I bought two front brake discs from them, the front discs for the 411 have a 409 Bristol part number -  409-1-23044.  
 Just to confuse us, the Parts List for the 409-410 has a different Bristol part number for the front brake discs, which is 909-1-23044 but thankfully they also list the same same Girling number 64327417.
 
 The Bristol part number for the rear discs is 909-1-30015 (Girling 64327404).
 
 It would be interesting to know why Bristol sometimes used part numbers beginning with 9 instead of a 4.
 
 The discs on a 408 are not the same as the 409-411 and have a 406 part number -  406-1-23044  (front and rear). Bristol used Dunlop brakes before the 409.
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 I'm not sure if there was any change between the 408 and the 408 Mark 2, but the rear discs on my 408 Mark 2 are part no 406-1-30091.  The front discs have the part no quoted by Kevin.  BCL still used the Dunlop brakes on the Mark 2.
George