The Radiator:

The original Gen1 2.5Td's 3-core radiator was used, with the following changes:
1. I had it re-cored, more as a precaution than necessity.
2. The mounting brackets were raised 2" (thus radiator lowered by 2") to allow for the water outlet from the engine to line up with the top of the radiator.

The outlet on the engine was cut and re-welded after rotating it 45 deg to line up the top hose:

To date the radiator is working 100% and cools the engine with no problem.

Oil Cooler:

The 4m40 (2.8Td) and 4m41 (Di-D) engines have oil coolers built into the block:



I decided to retain the external oil cooler of the 2.5 Td. (I suppose one can never have to much cooling?) The pipes to the external cooler needed slight mods to the Di-D's oil pipes:


The Sump:
In order not to mount the engine to high in the engine bay, I modified the sump slightly to clear the front diff housing. A standard 'dome' plate was welded into the sump, which provided the required clearance: