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Speedometer Driven Gears

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Price: $11.00
Availability: in stock

New OEM AC Delco gears are used in Muncie, GM T10, GM Super T10, Saginaw 3 & 4 speed, GM T5, Powerglide, 200 & 350 transmissions.

  • 17 tooth purple dimension -1.75 x .305 x .810
  • 18 tooth brown  dimension -1.75 x .305 x .810
  • 19 tooth white    dimension -1.75 x .305 x .810
  • 20 tooth blue     dimension -1.75 x .305 x .810
  • 21 tooth red       dimension -1.75 x .305 x .810
  • 22 tooth grey     dimension -1.75 x .305 x .810
  • 17-22T .810 diameter gears must be used with a 1.84 OD speedo drive gear.
  • 22 tooth green   dimension -1.75 x .305 x .870
  • 23 tooth black    dimension -1.75 x .305 x .870 - NO LONGER AVAILABLE
  • 24 tooth yellow   dimension -1.75 x .305 x .870
  • 25 tooth orange dimension -1.75 x .305 x .870 - NO LONGER AVAILABLE
  • 22-25T .870 diameter gears must be used with a 1.76 OD speedo drive gear.

    Speedo Gear Chart

    Axle Ratio                   6T                    7T                       8T -Drive Gears

    2.73                            -                       -                         18            

    3.08                            -                       18                       20

    3.27                             -                      19                       21

    3.55                           17                     20                       22

    3.73                           18                     21                       23

    4.10                            19                    22                       24

    4.30                            21                    23                       25

    4.56                            23                    24

    • Calculated driven gears are based on normal 26" tires and the formula listed below:

    Driven Gear Teeth = Drive gear teeth x axle ratio x tire revs/mile

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The Gear Box Transmissions, LLC. * Phone 734-793-0727

* Fax 734-793-0729