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Saint-Denis de Brompton, Qc J0B 2P0 1955, Route 222
819-212-3863 info@srs-concept.com
Open hours: Mon - Sat 8.00 - 17.00
BMW Differentials Gear Set Easy Identification

How many try to figure gear set ratio in differentials. And never get something precisely, the year and models can't be perfect at each time because the ratio may be changed by the past for many reasons.

Now We decided to let you a gear ratio chart that is really easy to use. You can verify the ratio directly by opening the differential cover and read the code stamped on the ring gear.

Small cases : 168mm

  • H41 = 3.45
  • H9 = 3.64
  • H2 = 4.10
  • H8 = 4.27
  • H12 = 4.44

Medium cases : 188mm

  • H27 = 2.79
  • H33 = 2.93
  • H23 = 3.15
  • H36 = 3.23
  • H34 = 3.25
  • H39 = 3.38
  • H30 = 3.46
  • H24 = 3.64
  • H35 = 3.73
  • H22 = 3.91
  • H21 = 4.10
  • H28 = 4.27
  • H31 = 4.45

Large cases : 210mm

  • H69 = 2.81
  • H53 = 2.93
  • H56 = 3.07
  • H57 = 3.15
  • H64 = 3.23
  • H60 = 3.46
  • H54 = 3.64
  • H52 = 3.91
  • G58 = 4.10
  • XMG362= 3.62

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Phone: 819-212-3863
1955, Route 222
Saint-Denis de Brompton, Qc J0B 2P0