Defender 130 rear axle noise

[Kappa130]

G'day guys , my 99' Defender 130 TD5 has started making this clicking noise from the rear diff area . I first noticed it when i was accelerating under load usually from a 1st to 2nd gear change . Then again it would start like a slight rattle when coasting and the axle under no load .
You can really only hear it with the window down and seems like the L/H rear wheel . Hasnt got any worse but hasnt got any better either !

Intially thought it was the rear axles (there was movement from the maxi drives shafts to heavy duty flanges) so i replaced them but it still there .
The driveline has very little backlash (for a Landrover anyway)

Uni's feel OK , pinion flange seems tight , tailshaft bolts are tight . All rear suspension bushes and upper balljoint have been replaced .

Anybody had this before ??? brake pins rattling perhaps ????

[Fraz]

Could it be as simple as the handbrake binding?
Slacken the adjustment screw right up and take it round the block. If it stops then your handbrake is probably dirty

[phibbzy]

Could be unijoints on the prop shaft on the way out?

Mine was a clicking/ticking intermittent sound differing and coming/going depending whether I was on or off the accelerator and felt fine too until i took the prop off and realised I couldn't move one by hand...

[Bearman]

Could be unijoints on the prop shaft on the way out?

Mine was a clicking/ticking intermittent sound differing and coming/going depending whether I was on or off the accelerator and felt fine too until i took the prop off and realised I couldn't move one by hand...

X2 for UJ's, probably the rear one.

[Kappa130]

Thanks guys - I think your onto something , I'll replace the rear driveshaft uni's and see how that goes . It feels OK , but sort of only thing really left.

No harm in checking the handbrake either , but there seems plenty of slack in it . Appreciate the help .