Ok, picked up the l/h seal from Mr.T, cost £17.00 inc vat.
Milners is £4.50 plus vat and postage, so about £11.00. They do say its genuine Toyots, but as they dont have any in stock, and I need one for Portugal, got the expensive one.....
Part numbers difference.....Toyotas current schematic is slightly different to Toyodiy - every other part number is identical, except the two seals! It says refer to a chart, apparently this is because these seals are also used on a current Hi-lux.
The left hand part number now is 90311-47012, and the right hand one is 90311-47013.
Took the truck down to a garage as I need the brakes pressure bled (cant do brake bleeding!) and the guy had a look at the leak. He reckons its a weep rather than a leak, so suggested I clean it up with thinners, then he will check it on Thursday when its in for the brakes - fresh oil will encourage me to do it straightaway.
Decided to change the diff-oil anyway, jeez, what a palaver! The back end was really easy, the front end meant removing the two skid plates, getting in to the fill hole, dropping oil on my parents drive......to refill I ran a clear tube down from the engine bay and used 1 litre containers, found it took about 1.6litre.
I had some LS Diff oil left from the rear, so topped that up with about 200ml of normal diff oil - think this is ok as LS seems to be the same oil with an additive which the front diff doesnt actually need.
The oil that came out was very dark, and I think the change has been worth it. When I did the rear the oil looked brand new still, whereas this looks like it hasnt been changed for a while - possibly because the front diff isnt under a lot of strain and also possibly because its a pig to get to.....
I need a workshop, with a lift, and lots of tools, and a Pirelli calendar....
Cheers
Pete