Gents have a shudder through the car from 50 mph through so up on the ramps today and both lower arms (rear) are shot so going to replace them and replace both rear wheel bearings at the same time as there is a slight rumble which I think is rear bearing also whilst in there going to take the prop of send it for rebalancing and to see if the mid bearing is ok

All worth checking, also check the rear diff - see ssm34304 for details:

'special service message, # ssm34304 models lm - new range rover la - discovery 3 ls - range rover sport title front & rear differential noise & oil leaks last modified 03-mar-2009 12:23 category: driveline symptom: 509000 axle concerns content: front & rear differential noise, minor oil seal leak & debris in oil. concern: noise (whine or humming) from the front or rear differential. a minor oil leak may be evident with possible debris in oil. oil will be black in color. cause: the casing black paint /sealer degrades, detaches and contaminates the oil. this results in the oil overheating which results in oil seal leaks and bearing noise. note: differentials from the vins quoted below are manufactured with a new casing paint which overcomes the above mentioned issues. please only raise an epqr for differential issues which occur post the quoted vin numbers: discovery 3 lr3 - la8a459201 range rover sport - ls8a141510 range rover. lm8a268394. '

Diff already changed for this fault

Oops, forgot

[Edit: My money's on the prop bearing then (gonna be wrong ) ]

So all done new wheel bearings on back both sides also new lower arms both sides new discs and pads all round and a new drive shaft offside rear and drives excellent once again

Oh forgot new brake caliper offside rear