Mack 5 Speed 1076/1078 Triple Countershaft Transmission

• All New Billet Gears
  
• All New Billet Shafts
  
• Converts Mack 5 Speed To 4 Usable Gear Ratios
  
• Input Shaft Available In Std, +.800, +1.300 Lengths
  
• Output Shaft 46 Spline​
  

Semi Truck