i bent my axel some time ago and well they didnt seat the seal all the way on there and over time it ended up leakin a good ammount of the diff oil out.....and so now the axel when i acel. it screams at me goin down the road and so i then took it back to them they resealed it there was alot of shavings enough it turnd the fluid black black with silver dust....

well after they resealed it and etc the screamin went away but now not only does it scream wen i acel. it does it when im goin down the road.....

any help will do please thanks guys

So did they replace the bent axle?
If the noise is constant I would say that you have a bearing problem..might be the axle bearing or it could be a carrier bearing.
They should have investigated the noise while they serviced the differential..especially when they found metal flakes suspended in the lube.

yes they did replace the bent axel.....
they wernt sure if it was the bearings because they all looked fine....i saw them all my self even....though looks could be deciving.....im hoping its just bearings.....