Difference Between TF-80SC And TG-81SC

Courtesy of VOLVO CARS CORPORATION

1. Front planetary train 

   Clutch C4

2. Torque converter 

   Longer movement damper (petrol engine)

   Centrifugal pendulum damping (diesel engine)

   Reduced torus ^^ for increased damping area

3. Advanced clutch 

   N/C at low vehicle speed

   Fast upshift control

4. Gear housing 

   Reduced oil flow circuit

   Electromagnetic oil pump adapted for Start/Stop system

   An extra linear solenoid

5. Rear planetary train 

   Wider gear range

6. Clutch/brake, low resistance 

   Oil pump, low resistance

   OWC, low resistance

Difference between TF-80SC and TG-81SC 

• Wider gear range
• Lower energy losses
• Increased capacity, torque
• Improved torque converter

Size difference between TF-80SC and TG-81SC 

Courtesy of VOLVO CARS CORPORATION

To left TG-81SC, to right TF-80SC/SD