Speedo Driven Gear GM T10

Speedo driven gears for GM T10 transmissions. OEM AC Delco gears. Your choice of one gear, please specify:

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 - NO LONGER AVAILABLE
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