How much play should there be in the diff of a Salisbury Axel. We took the diff pan off the Defender 110 to have a look, from what other’s are saying this looks to be normal. The other good news is there were no lumps of metal in the oil that came out or sat in the pan, the gears and teeth look good as well.
Just a note, you probably want to have a spare gasket (about £5) for the diff when you take the pan off as it is likely to be warn. Also don’t forget to drain the oil out of the drain plug at the bottom otherwise you will have a drive full of diff oil, you need 2.23 ltrs of 80W/90 to put back in it once you have finished your check.