Discovery II (LT) V8-4.0L (2002)
8. Check differential lock selector finger groove in selector shaft.
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Groove width - 16.0 to 16-1 mm (0.63 to 0.64 in).
9. Check detent grooves in differential lock selector shaft for wear.
10. Check differential lock detent ball for flat spots and check detent spring for distortion.
11. Check differential lock selector fork for cracks and wear.
12. Check selector fork finger width.
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Finger width = 7.92 to 7.97 mm (0.311 to 0.313 in).
13. Check differential lock selector fork clips for wear and damage. Check spring for distortion and free length.
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Spring free length - 84.58 mm (3.33 in).