F40 Gearbox Master Repair Kit – 2nd Gear (51T) with Hub & Synchromesh

Complete Master Repair Kit

for F40 6-Speed Transmission – 2nd Gear (51T)

This master rebuild kit is designed to restore gear operation in your F40 manual transmission. It includes all necessary components to repair the 2nd gear (51-tooth).

Parts Included:

• 2nd Gear (51 Teeth) – Output Shaft Side
• Replacement Selector Fork
• 1st & 2nd Gear Synchro Hub
• 1st & 2nd Synchromesh Rings
• Bolt Set
• O-Ring for Selector Turret
• Inner Needle Bearing for 2nd Gear
• Circlips
• New Drain Bolt

Fitment Details

& Compatibility

• No official reference system exists for the F40 gearbox.
• Customers must cross-reference the tooth count and selection tooth pitch angle before purchase.

Frequently Asked Questions

Which gearbox does this kit fit?

This kit is designed for the F40 6-speed manual transmission, specifically repairing the 2nd gear (51-tooth). There is no official reference system for the F40 gearbox, so please cross-reference the tooth count and selector tooth pitch angle before ordering.

What is included in this kit?

The kit includes the 2nd gear (51-tooth, output shaft side), a replacement selector fork, 1st & 2nd gear synchro hub, 1st & 2nd synchromesh rings, a bolt set, an O-ring for the selector turret, an inner needle bearing for 2nd gear, circlips, and a new drain bolt.

Is this OEM quality?

Yes — this kit is supplied to OEM specification using quality-graded bearings and seals.

Do I need to drain the gearbox before fitting?

Yes — drain the gearbox before beginning internal work. Follow the workshop manual for the correct drain and refill procedure.

Why Choose Eco Torque?

As specialists in gearbox rebuilds and repairs, Eco Torque is proud to offer:

• Genuine gearbox parts
• High-quality aftermarket alternatives
• Competitive prices

Browse Eco Torque’s growing product range online to find the parts you need.

Need Help?

If you’re unsure whether this part is compatible with your vehicle, send us your UK registration number or VIN code, and we’ll help you find the correct part.

Reference Number: ETB2388