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Land Rover Series Gearbox Main Nut Tool
Land Rover Special Tool Number: 600300.

HNJ Engineering are offering a remanufactured equivalent of Land Rover Special Tool 600300.

This tool is used for tightening up the main nut on the end of the gearbox output shaft to a torque of 85lbf.ft. (Torque figure courtesy of the Land Rover Green Bible).

These tools are manufactured from EN24 Steel in small batches using CNC (Computer Numerical Control) methods in the UK.
EN24 Steel gives the tool high tensile strength, shock resistance, good ductility and resistance to wear.

This tool is designed to accept a 1/2" drive wrench or a 30mm AF socket/spanner.

HNJ Engineering strongly recommends you use this tool with a new genuine Land Rover Main shaft lock nut (Land Rover Part No: 217477).
This is to ensure optimum engagement of the teeth on the tool and the main shaft lock nut; it is not uncommon to find main shaft lock nuts that have been tightened using hammer and chisel.