[MustangBIlly]

Are you supposed to change the oil in the rear differential at any certain intervals??? I have had my 65 for about a year now and I don't know if it has ever been changed

[MustangBIlly]

o yea ---- if you do have to change it do you take the plate off the back to drain it?

[andrewmp6]

Theres only a plate on the back if its a inline 6 car the 8 inch and 9 inch its welded on.If its a inline 6 yes you take the diff cover off if its a 8 inch or 9 theres a drain hole and hill hole in the 3rd member casing.

[heavy metal]

i would change it,and think about going to synthetic.

[MustangBIlly]

thanx alot ill check out some sythetic

[MustangBIlly]

Before I go ahead and take off the plate, is there a gasket that will need replacing once i take it off?

[andrewmp6]

Is it a inline 6 car or v8 car?