
 TRUCK TRANSMISSION LOSS CALCULATIONS:

 5% LOSS RANGE PLANETARY GEARS,    AT REAR OF 4 OR 5 SPEED GEARBOX
 2% LOSS SPLITTER GEARS,           AT REAR OF 4 OR 5 SPEED GEARBOX
 1:1 = 2%,  2:1 = 3%,  3:1 = 5%    LOSS IN GEARBOX
 5:1 = 6%                          LOSS IN DIFFERENTAL

 MACK MAXITORQUE ES TRANSMISSIONS:

 18 speed, T-318L: 
  GB   RATIO   LOSS
   L = 3.64     5%
   1 = 1.94     3%
   2 = 1.39     3%
   3 = 1.00     2%
   4 = 0.71     3%
   SPLITTER: LO(IN) = 1.18, HI(OUT) = 1.00     2%
   RANGE:    LO(IN) = 3.83, HI(OUT) = 1.00     5%

 GEAR  RANGE  SPLIT GB LEVER  RATIO    EFF    R  S  G  = TOTAL LOSS
  1     L      L    L   LO    16.42    .88    5% 2% 5% = 12%
  2     L      H    L   LO    13.93    .90    5  0  5  = 10%
  3     L      L    1    1     8.78    .90    5  2  3  = 10%
  4     L      H    1    1     7.45    .92    5  0  3  =  8
  5     L      L    2    2     6.28    .90    5  2  3  = 10
  6     L      H    2    2     5.33    .92    5  0  3  =  8
  7     L      L    3    3     4.52    .91    5  2  2  =  9
  8     L      H    3    3     3.83    .93    5  0  2  =  7
  9     L      L    4    4     3.22    .90    5  2  3  = 10
 10     L      H    4    4     2.73    .92    5  0  3  =  8
 11     H      L    1    5     2.29    .95    0  2  3  =  5
 12     H      H    1    5     1.94    .97    0  0  3  =  3
 13     H      L    2    6     1.64    .95    0  2  3  =  5
 14     H      H    2    6     1.39    .97    0  0  3  =  3
 15     H      L    3    7     1.18    .96    0  2  2  =  4
 16     H      H    3    7     1.00    .98    0  0  2  =  2
 17     H      L    4    8      .84    .95    0  2  3  =  5
 18     H      H    4    8      .71    .97    0  0  3  =  3

 ----------------------------------------------

 13 speed, T-313L: 
  GB   RATIO  LOSS
   L = 3.64    5%
   1 = 1.94    3%
   2 = 1.39    3%
   3 = 1.00    2%
   4 = 0.71    3%
   SPLITTER: LO(IN) = 1.18, HI(OUT) = 1.00   2%
   RANGE:    LO(IN) = 3.83, HI(OUT) = 1.00   5%

 GEAR  RANGE  SPLIT GB  LEVER  RATIO    R  S  G  = TOTAL LOSS
  1     LO     LO    L   LO    16.42    5% 2% 5% = 12%
  2     L      L     1    1     8.78    5  2  3
  3     L      L     2    2     6.28    5  2  3
  4     L      L     3    3     4.52    5  2  2
  5     L      L     4    4     3.22    5  2  3
  6     H      L     1    5     2.29    0  2  3
  7     H      H     1    5     1.94    0  0  3
  8     H      L     2    6     1.64    0  2  3
  9     H      H     2    6     1.39    0  0  3
 10     H      L     3    7     1.18    0  2  2
 11     H      H     3    7     1.00    0  0  2
 12     H      L     4    8      .84    0  2  3
 13     H      H     4    8      .71    0  0  3

 ----------------------------------------------

 10 speed, T-310: 
  GB   RATIO  LOSS
   1 = 2.67    5%
   2 = 1.94    3
   3 = 1.39    3
   4 = 1.00    2
   5 = 0.73    3
   RANGE: LO(IN) = 5.17, HI(OUT) = 1.00   5%

 GEAR  RANGE  GB    LEVER  RATIO    R  G  = TOTAL LOSS
  1     L     1       1    13.81    5% 5% = 10%
  2     L     2       2    10.05    5  3  =  8
  3     L     3       3     7.18    5  3  =  8
  4     L     4       4     5.17    5  2  =  7
  5     L     5       5     3.75    5  3  =  8
  6     H     1       6     2.67    0  5  =  5
  7     H     2       7     1.94    0  3  =  3
  8     H     3       8     1.39    0  3  =  3
  9     H     4       9     1.00    0  2  =  2
 10     H     5      10      .73    0  3  =  3

 -----------------------------------

 9 speed, T-309: 
  GB   RATIO  LOSS
  LO = 2.73   4%
   1 = 1.94   3%
   2 = 1.39   3%
   3 = 1.00   2%
   4 = 0.71   3%
   RANGE: LO(IN) = 3.83, HI(OUT) = 1.00   5%

 GEAR  RANGE  GB    LEVER  RATIO    R  G  = TOTAL LOSS
  1     L     L      LO    11.45    5% 4% = 9%
  2     L     1       1     7.45    5  3    8
  3     L     2       2     5.33    5  3    8
  4     L     3       3     3.83    5  2    7
  5     L     4       4     2.73    5  3    8
  6     H     1       5     1.94    0  3    3
  7     H     2       6     1.39    0  3    3
  8     H     3       7     1.00    0  2    2
  9     H     4       8      .71    0  3    3

 -----------------------------------

 8 speed, TM-308: 
  GB   RATIO  LOSS
   1 = 6.57   6%
   2 = 4.05   5
   3 = 2.54   4
   4 = 1.57   3
   5 = 1.00   2
   6 = 0.71   3
   RANGE: LO(IN) = 2.70, HI(OUT) = 1.00    5%

 GEAR  RANGE  GB    LEVER  RATIO   R  G  = TOTAL
  1     L      1      1L   17.77   5% 6% = 11%
  2     L      2      2L   10.94   5  5    10
  3     H      1      1H    6.57   0  6     6
  4     H      2      2H    4.05   0  5     5
  5     H      3      3     2.54   0  4     4
  6     H      4      4     1.57   0  3     3
  7     H      5      5     1.00   0  2     2
  8     H      6      6      .71   0  3     3

 -----------------------------------

 8 speed, T-308: 
  GB   RATIO  LOSS
   1 = 5.24   6%
   2 = 3.05   5
   3 = 1.73   3
   4 = 1.00   2
   5 = 0.60   3
   RANGE: LO(IN) = 3.83, HI(OUT) = 1.00    5%

 GEAR  RANGE  GB    LEVER  RATIO    R  G  = TOTAL
  1     L      1      1L   20.08    5% 6% = 11%
  2     L      2      2L   11.68    5  5    10
  3     L      3      3L    6.63    5  3     8
  4     H      1      1H    5.24    0  6     6
  5     H      2      2H    3.05    0  5     5
  6     H      3      3H    1.73    0  3     3
  7     H      4      4     1.00    0  2     2
  8     H      5      5      .60    0  3     3


