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        Large pin                                 Small pin

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Adjuster location - In the picture below adjuster is next to the large pin.

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Knorr bremse sensor 2 types clip or screw.Trailer calipers blank.

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Pic 1 Clip                              Pic 2 screw                      Pic 3 blank

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Please see below are caliper identification sheet.To help ID your unit

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