oil was leaking all through the brakes actually making the linings fall to bits.
Prob been leaking for years as I got the tractor with the farm .
So here are the pics of the top diff cover removed, once I pull the axles ill take some more pics , hope this helps other people
The workshop manual has terrible pictures
I used a block and tackle off the roll bar to lift the diff cover off, looking at this I say to get the gearbox cover off you would have to remove this diff cover first so might remove the bolt out that is trapped under the diff cover while its off.
You can the see the bolt in the second picture just to the top left of the crown wheel - I have marked a red circle around it.
![Image](http://www.classicmachinery.net/forum/images/post_img/108768_4694932095807048fc9a60.jpg)
Original URL: http://i476.photobucket.com/albums/rr122/dew33/WP_20161018_005_zpsq6evm89q.jpg[/URL]
![Image](http://www.classicmachinery.net/forum/images/post_img/108768_12018570115807049262ac7.jpg)
Original URL: http://i476.photobucket.com/albums/rr122/dew33/WP_20161018_003_zpslqwwysqu.jpg[/URL]