If that is your only issue with a 20 year plus truck you are very lucky. Only a thorough clean up will disclose the exact cause of the leak. Also I think the oil has a red hue which says main box oil. Anyway it will be basic fix of gasket or seal, how much cost depends on which one. Most...

Did mine two years ago, it was much worse than that. The whole bottom rail gone as well as some of vertical ones. Did fix it in the end but a lot more faff than doing a front door. Looking back a new door would have been better despite the cost because it took me a lot of time.

Can be done but it is a right fiddle. There is a tool to do the job [see Youtube] but I have not ever seen one for real. A trick is to put rod into a bit of plastic pipe with the clip on. Pipe is just long enough so when clip is tight at its end a small vice/mole grip is latched onto the slave...

The doors are 34" so the bulkhead to tub measure should be 34.5"to allow for shut gap.

I have a special horn on mine for folk of a nervous disposition, starts as a hum of increasing volume before you get the full barp!:D:D Wonder if it will pass this years mot.

As the piston is out honing it would take little time and be a benefit for new rings.

Classic fail that. Ran a 10j petrol for many years and had a couple of changes for that reason. Recon all there is to do is clean it up and renew. I never used new head bolts, just made sure correct torque sequence done in stages up to 90lbft [ if I remember right] but did do a retorque after...

You are likely right, new ignition switch needed. Mate had a 2008 model and his went faulty just getting stuck and not turning. As yours still turns a new switch unit can be fitted. 2 small screws hold it to the key unit. I think getting at the ignition switch in a 2008 model more of a faff...

So the whole drive train as noted in first post is not all Disco. Recon you just need the repair kit for axle of your year and fit new Railko bush and seal. You also need to set the swivel pre load for it to work right. How to info on the Youtube.

What year is yours? My 1990 Ninety doe's not have any numbers on it. Looking at your pic can not be 100% but recon your axle is a Ninety unit. If you remove the top swivel and find it fits into a Railko bush then that confirms. Have a look at Ninety and Disco one top pins they are quite different.

It is not an 89 truck. Many features mark it as noted above as a 300tdi. If Vin and V5 say so very likely it's a ringer.

Sooo Do you know for sure you have Disco front axle? I would not go on the retaining rig as one never knows what has been done in the past. Swivel ball looks pretty good so thinking that something to do with the setup and or seal is wrong given the amount of oil/grease coming out. If you...

So your supplier sent an alternator with no pully?

For a 65ish year old bulkhead that is not at all bad. Door pillars have been done before as those are series 3 type. Better because they have clips for the wing bolts not captive [ usually for ever ]nuts, different but can not be seen once the wing is on. They can be replaced again. Foot well...

When it comes to value of older landy's a lot depends on the condition of the chassis and bulkhead, at least it does to those who know them. I presume IOM has MOT's ? Can history be checked?