Q: Rear differential

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I have 2 528i bmws one is a lot nicer but the rear differential went out and the trashed one has a a good rear end what kind of tools would i need to take the whole differential off

My car has 144655 miles.
My car has an automatic transmission.

Firstly, you will need equipment to safely raise and suspend the vehicle while working under it. A transmission jack or similar to support the exhaust (original system is 1-piece front-to-back) and the differential itself for removal and re-installation. Torx bolt sockets (M8, M10 and M12), and a full assortment of regular metric sockets (1/2" drive mostly). 17mm allen wrench or bit to change fluid before putting in "donor" diff. Also, this repair requires a buddy to assist with the heavy bits. A task like this task will pretty much take up a Saturday.

If you need assistance with this, consider YourMechanic, as one of our mobile technicians can come to your home to inspect and service your vehicle.

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