Single Speed Gearbox — Tesla Model Y
Category: Transmission | Severity: high | Cost: ₹1,50,000–₹4,00,000
What is Single Speed Gearbox?
A fixed-ratio gearbox used in EVs to transfer power from motor to wheels.
How Single Speed Gearbox Works
Uses a reduction gear to convert high RPM motor output into usable wheel torque.
Why is Single Speed Gearbox Important?
Core drivetrain component enabling smooth and instant torque delivery.
Common Problems
- Gear noise
- Wear over time
Symptoms
- Whining noise
- Reduced efficiency
Causes of Failure
- Lubrication issues
- Bearing wear
Impact on Car Performance
Reduced power delivery efficiency.
DIY Fix Guide — Step by Step
- Not DIY serviceable
Maintenance Tips
- Check gear oil condition periodically
Replacement Cost in India
Estimated range: ₹1,50,000 – ₹4,00,000
Where to Buy Online
When to Replace Single Speed Gearbox
When excessive noise or internal failure occurs.