Skip to content
Search parts

FRC6670 - Synchromesh Assembly – 1st/2nd – LT77

Original price - Original price €209,00
Original price
€209,00
€209,00 - €209,00
Current price €209,00
Aftermarket Part
Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.
Synchromesh Assembly for 1st and 2nd gear in the LT77 5-speed manual gearbox.

Mounted on the mainshaft, the synchromesh matches the rotational speed of the gear and shaft during a shift, allowing 1st and 2nd to engage smoothly without clash. It works with the associated baulk rings and selector hub in the 1st/2nd gear train.
Vehicle Model Land Rover Defender up to 2016
Range Rover Classic up to 1994
Fitment Notes DEFENDER 1987-2006 — LT77, mainshaft 1st/2nd gear synchromesh, 5-speed manual
Alternative Codes
FRC6670

In stock 1 unit
1 · Gouda 0 · Drachten
Express delivery available

When will my order arrive?
  • Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
  • UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
  • Netherlands / Belgium / Germany: 2–4 working days.
  • Other EU countries + UK: 4–8 working days.
  • Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What does the 1st/2nd synchromesh do in the LT77 gearbox?
The 1st/2nd synchromesh assembly matches the speed of the gear and mainshaft during a shift so 1st and 2nd engage smoothly without crunching. It's mounted on the mainshaft of the LT77 5-speed manual gearbox and works with the baulk rings and selector hub in the 1st/2nd gear train.
What are the symptoms of a worn 1st/2nd synchromesh?
A worn 1st/2nd synchromesh usually shows as a crunch or graunch when shifting into 1st or 2nd, especially when cold or shifting quickly. Baulking or refusing to engage cleanly points the same way. It's typically renewed during a gearbox rebuild once the synchro cones wear.
Which gearbox does this synchromesh fit?
This synchromesh is specific to the LT77 5-speed manual gearbox, fitted to the Land Rover Defender (1987-2006) and Range Rover Classic. It's the 1st/2nd assembly on the mainshaft. Confirm you have the LT77 rather than the later R380, as the internals differ between the two boxes.
Is replacing the synchromesh a specialist job?
Replacing the 1st/2nd synchromesh is typically a specialist workshop job. It sits inside the LT77 gearbox on the mainshaft, so the box must come out and be dismantled to reach it. It's usually done as part of a full gearbox rebuild rather than on its own.