02-07-2020, 11:50 AM
Brian, it's important that the rear axle is hanging downwards with no weight on the rear springs when you do this, otherwise you might end up putting too much in which can then find its way to the brakes. Jack the car up on the rear crossmember so both rear wheels are clear of the ground. It helps if you stand the oil in a pan of hot water before you fill the diff. I use a large 100ml syringe to inject the oil. It helps if you rotate the diff a little so the syring goes right into the middle of the workings. Once the oil comes up to the level plug, let it drip overnight before replacing the plug. I'm sure that I only put in about 2/3rds of a pint in my 33 axle.