Brake back plate date

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mini63
1275 Cooper S
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Brake back plate date

Post by mini63 »

Can anyone identify a change date in the rear brake back plate
from having 2 small pressed bumps to having a roll pin locating the wheel cylinder.
My car has one of each type.
Just wondering...
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woodypup59
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Re: Brake back plate date

Post by woodypup59 »

Possibly '64 when they changed to twin leading shoe front brakes, which meant that all cylinder sizes changed.

To prevent assymetric braking by the subsequent fitting of wrong wheel cyls, the roll pin was introduced.
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