Part Make
Mack
Part#
56KH3154P2

Spur shaft mack number- 56KH3154P2 EM79610 Ratio's- 3.86, 4.64, 6.06
Part Make
Mack
Part#
61KH47BP10

Bull Gear Mack number- 61KH47BP10 EM79710 ratio's- 3.86, 4.64 & 6.06