Need help with Rear Diff oil for 07 TRD

I have a 07 TRD 2WD .

I need to know what type of oil I need for the rear diff and how much? Do I need to add an additive? I have the electrical switch on the dash that allows me to lock both axles in but I don't know if this is the same thing as a limited slip.

I will stay with dino type, just need if I need to add anything.

I am on the way to the store so any quick reply's are welcomed.

Thanks
Rick

 

If you have the TRD Sport you need conventional 80w-90 with a tube of limited slip additive.

If you have TRD Off-Road I believe you can use synthetic

$28 75w-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75w-90 with no additive.