leak from ird casing/housing

hi, my freelander td4 had a MOT last weak and failed on track rod ends so i changed them and had the tracking done ,sorted.however on the mot cert it says that there were a number of things that need attention. 1 leak on o/s rear driveshaft seal. 2 a leak on o/s ird housing so ive looked at a few threads on this forum and decided to have a go myself.has anyone got any advice on this before i start pulling my 4x4 to bits, like how long these two jobs are likely to take ,any special tools or hints,thanks

Have a shufty at my thread here from a few weeks ago. On the second page I sum up what I did to get the IRD casing apart to cure the leak.

http://www.landyzone.co.uk/lz/f9/ird-missing-bit-195701.html

Thanks thats made my mind up for me im defo going to tackle that on sat anyway cant aford £400 that lr qouted.your pics look exactly like the prob im having except for the breather pipe and missing bolt,ive checked mine and everything seems in place,what is the best way to go about getting the casing off,what oil do i use,do i have to change the driveshaft oil seal anyway im sure everything will become clear once ive got the landy up in the air.