UPPER SETS

GEAR

TOOTH

YOUR TRANSFER

RATIO

COUNT

CASE RATIO IS

1 TO 1

32/32

1 TO 1

1 TO 1

1.032

31/32

1.032

1.032 over

1.065

31/33

1.065

1.065 over

1.100

30/33

1.100

1.100 over

1.133

30/34

1.133

1.133 over

1.172

29/34

1.172

1.172 over

1.207

29/35

1.207

1.207 over

1.250

28/35

1.250

1.250 over

1.286

28/36

1.286

1.286 over

1.333

27/36

1.333

1.333 over

1.370

27/37

1.370

1.370 over

1.420

26/37

1.420

1.420 over

1.462

26/38

1.462

1.520

25/38

1.520

1.560

25/39

1.560

1.625

24/39

1.625

1.667

24/40

1.667

UNDERDRIVE

OVERDRIVE

LOWER SETS

RATIO

TOOTH COUNT

RATIO

TOOTH COUNT

1 TO 1

33/33

2.421

19/46

1.640

25/41

2.824

17/48

Upper Set x Lower Set x Rear Ends ( x Any Transmission Ratio) = Overall Ratio