Which Drum-Brake System for the BMW 3-Series?

3 (E36) 1990-1998

Drum outer diameter Total drum height Inner drum height Number of holes PCD
269.9 mm 58,7 mm 46,3 mm 5 120 mm
269.9 mm 58,7 mm 46 mm 5 120 mm
270 mm 58,7 mm 47 mm 5 120 mm
270 mm 59 mm 47 mm - 120 mm

3 (E30) 1982-1992

Drum outer diameter Total drum height Inner drum height Number of holes PCD
269.5 mm 58,5 mm 46,5 mm - 100 mm
269.5 mm 58,2 mm 46 mm 4 100 mm
269.8 mm 58,5 mm 46,4 mm 4 100 mm
270 mm 58,5 mm 46,4 mm 4 100 mm

3 (E21) 1975-1984

Drum outer diameter Total drum height Inner drum height Number of holes PCD
285 mm 62,5 mm 47 mm 4 100 mm
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