There's recently been a discussion on Mogtalk about greasing propshafts which tonight, led me to crawl under the Mog for some reassurance. What follows is a quick guide as to what's down there. You'll need the rear raised at least nine inches, and I have a sylph like figure.........well, almost.
First the axle filler/level plug. It's a big one and it has a warning sticker about the LSD and what oil should be used. (Check Handbook). The diff has caught some primer from the paintshop. There's no drain plug, but the lower diff cover bolt may well serve the purpose. Best practice though is to leave well alone unless it's leaking.

Next is the handbrake cable compensator which you can see is fixed to the roll hoop - offside.

Here's the other end (nearside) with threaded adjuster visible.

This is the nearside flexible brake hose. Although it's protected by the spiral binding, it touches the tank, so I've added a short length of cut hose for additional protection.

Here's the rear propshaft UJ, and the grease nipple is quite clear. It doesn't appear to have seen much grease. My standard gun with flexible pipe just fitted. Access is tight. The handbrake cable is visible on the bottom of the shot, disappearing into the tunnel.

And this is the gearbox end. Gearbox to the right, sliding yoke to the left. Two grease nipples in shot. Don't overdo the sliding yoke nipple. If you do it will spray grease all around the inside of the tunnel and make a right mess. Just visible lower left is the handbrake pivot...........

Here's a slightly lower shot, which shows the pivot, the return spring, and the cable just above it.The switch is for the warning light.

This is the remote gear linkage looking up and to the rear. A lovely elegant design, the sliding propshaft yoke is blurred lower right. The single selector rod is offset to the nearside and appears as a gold coloured rod.

Finally, the question of the gearbox filler plug. Well, there is one............
But there's absolutely no clearance and there's no access hatch in the side of the tunnel. BUT, it's 'filled for life' so unless it develops a leak, no need to worry. I was surprised just how close this is to the tunnel side. This shot was taken vertically upwards.

I hope you enjoyed the tour.