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TKC4635 - Layshaft Shim – LT77/R380

Original price - Original price €4,50
Original price
€4,50
€4,50 - €4,50
Current price €4,50
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Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
Layshaft Shim for the LT77 and R380 five-speed manual gearboxes, located at the layshaft (countershaft) and reverse idler.

This is a selective shim used to set the layshaft endfloat and bearing preload during gearbox assembly. It is supplied in graded thicknesses and fitted as required to achieve the correct running clearance.
Vehicle Model Land Rover Defender up to 2016
Range Rover Classic up to 1994
Fitment Notes DEFENDER 1987-2006 — 5-speed manual gearbox (LT77/R380), layshaft shim, to Suffix E inclusive
RANGE ROVER CLASSIC 1986-1991 — Layshaft & Reverse Idler, manual transmission
Alternative Codes
10003253TKC4635

In stock 19 units
19 · 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 is the LT77/R380 layshaft shim (TKC4635)?
The layshaft shim is a selective spacer for the LT77 and R380 5-speed manual gearboxes, fitted at the layshaft (countershaft) and reverse idler. It sets the layshaft endfloat and bearing preload during gearbox assembly.
Which vehicles and gearboxes use this shim?
It fits the LT77 and R380 5-speed manual gearboxes up to suffix E, used in the Defender (1987-2006) and Range Rover Classic (1986-1991). Confirm your gearbox type and suffix before ordering.
How is the correct layshaft shim chosen?
Layshaft shims come in graded thicknesses and are fitted as required. During a gearbox rebuild you measure the layshaft endfloat, then select the shim that brings it into the correct range to set bearing preload.