Hello,

Its time to replace my radiator, it leaks far too much.

Question is I have no idea what the differences are between the below.

Vehicle - 1986 originally 2.5td, now a 3.5 carb v8.

The radiator now looks like this one

https://www.ebay.co.uk/itm/LAND-ROV...646888?hash=item5b2deec5e8:g:WcoAAOSwMVdYGf~u

which seems to be the same part number as this one, but different top mounts

https://www.paddockspares.com/esr76-radiator-v8-to-fa428918-without-oil-cooler.html

But then theres this one, with the correct top mount but the bottom hose connects straight in.

https://www.paddockspares.com/esr203-radiator-v8-from-fa428919-without-oil-cooler.html

Anyone have any idea?

I would go with the one for the mounts you have, an extra elbow in the pipe work not a great problem.
Not sure but the one in the first pic may be upside down.