FRC4339 | Mainshaft Shim 1.87mm - LT77 | Defender, Discovery 1, Range Rover Classic
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To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: FRC4339 - Mainshaft Shim 1.87mm
FRC4339 is a 1.87mm mainshaft shim. Fitted to the LT77 mainshaft in 5-speed manual transmissions, this shim is used during gearbox assembly to set and control the axial endplay of the mainshaft, ensuring correct axial clearance between the shaft and adjacent components.
Compatibility
- Discovery 1 (1989-1998) - Mainshaft (4 cylinder, manual transmission) - From VIN FA393361 to VIN WA799999
- Defender (1987-2006) - Mainshaft (5-speed manual transmission)
- Range Rover Classic (1986-1991) - Mainshaft - To VIN HA610293
- Range Rover Classic (1992-1994) - Mainshaft (manual transmission) - From VIN JA610294
Frequently Asked Questions
FRC4339 is a 1.87mm shim used on the LT77 mainshaft of 5-speed manual transmissions to set and control axial endplay. It is positioned during gearbox assembly to achieve the correct axial clearance, helping to prevent excessive endplay that can lead to premature bearing or gear wear.
| Model | Variant |
|---|---|
| Land Rover Defender | Mainshaft (1987-2006) - 5-speed manual transmission |
| Land Rover Range Rover Classic | Mainshaft (1986-1991) - To VIN HA610293 |
| Land Rover Range Rover Classic | Mainshaft (1992-1994) - Manual transmission - From VIN JA610294 |
| Land Rover Discovery 1 | Mainshaft (1989-1998) - 4 cylinder, manual transmission - From VIN FA393361 to VIN WA799999 |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
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