[chef]

hey all my rear diff is making nosie it like a humming sound it start around 20k's hour and louder when i put my foot down and still there when back off

what is it and how do i fix it??

[mrw82]

check/change the oil, look for excessive metal filings when you drop the oil.

[hooki]

wheel bearing on it's way out maybe??

[Hybrid]

I had this recently on my daily drive. Being a victim of the BA ford diff problems I assumed it was another blown diff. It ended up being the tyres. Any chance it could be that?

[Damo]

I had a similar thing with a flogged out pinion bearing. Though from memory the noise didn't really kick in until around 60kph.

[chef]

well i change my oil and it still my the noise so ill check the wheel bearing later on when i get time but it drives fine but i still cannot hit 100km

[smileysmoke]

is it a vibration...? driveshaft?

[chef]

not sure?? the rear end feel fine

[Brett]

not getting to 100k's would be a tune thing i'd say.

is the pinion seal leaking? how many k's on the diff?

[chef]

hit 100 k's on the way to work and home
and the is no diff leak and the car has done 255,000km

[Scrawny]

Could still be a diff bearing noise, although changing the oil should have at least queitened it down a bit. My guess would be wheel bearings though.