Genuine Toyota Diff Gasket – Factory Diff Lock – LandCruiser 70 Series – Front

If the front diff housing flexes too much, the stud and nuts can become loose, causing the gasket to fail and the oil to leak out.
Around 2019, Toyota updated the front diff housing by welding an extra internal brace, designing a new gasket, and changing the stud and nut lengths.
This was to help stiffen the front diff housing, reduce the amount of flexing, and reduce the risk of gasket failure.

Since this update, we have not seen a gasket failure on the front diff.

Although older diff housings are missing the extra internal brace, this kit can be used, and if installed with the newly designed gasket, greatly reduces the risk of gasket failure.

Vehicle Compatibility: HZJ78, HZJ79, HDJ78, HDJ79, VDJ76, VDJ8 & VDJ79. (with factory diff lock only)

Link to stud & nut upgrade kit.

This part number 42181-60170 supersedes 42181-60080