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My wagon is making a woooo sound when i turn the wheel left past a certan point and also a little bit when turning right but stops when going straight, any Susgestions? also it is making a thump sound when i change gears and give it abit of gas or if iam just crusing and then quickly tap my foot on the gas it sounds like it coming from the back diff.Any input would be greatly appereated.

The sound when your turning sounds like your power steering (if you have it)

Check your fluid levels.

wheel bearings?
Cheers
AP

Back diff thump kind of noise is possible it's the top diff mount bush or moustache bar bushes (more likely top diff mount bush). Check if they are flogged out.

Maybe also check your engine mounts for the thumping when changing gears.

are you saying that the noise happens when driving along (could be wheel bearings as said above) or when sitting still with the motor running and turning the steering wheel from left to right?
+1 for the power steering fluid causing the pump to be noisy when its made to work under load if thats the case.

Well i just took a look at the diff and the top diff mount bush has pretty much got no rubber left in it all floged out so thats my diff problem solved $40from the wreckers as for the woooo sound in the front,there is no sound when car is still and iam dry turning the wheel the power steering fluid is fine so iam thinking wheel bearings but i only replaced then about 1 year ago,is the any way to check if its the wheel bearings?.Thanks guys for the help.

If you suspect front wheel bearings try jacking the car up and seeing how well the wheel spins, ie if there are any obvious grinding noises etc. Mechanics use a stethoscope type of device for listening better but you might be able to tell.
Also try giving the big castellated nut in the centre of the hub abit of a nip to tighten it up to the next split-pin notch (If you have a 36mm socket and breaker bar available).