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Fluid, Filter/Pan Combo removal and install
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These are the LR instructions re removal and install of the plastic pan/filter combo for the ZF 6HP26X transmission on the 4.4L petrol V8 LR3.
The instructions tend to ignore the reason you have to lift the right hand side of the engine about 40 mm. This is because of a frame cross member that interferes with dropping down of the plastic pan. The real problem is a vertical "oil filter spout" that rises out of the filter/pan combo up into the transmission. The spout is the suction pipe for filtered transmission oil back up into the tranny.
On the metal pan versions, the filter is separate from the pan, hence the filter remains with the tranny when the metal pan is dropped. The filter is then removed or installed independent of the metal pan, hence with the metal pan, there is no need to lift the engine.
If one is removing the plastic pan so as to install the metal pan, then some do not lift the engine but just drop the plastic pan enough to gain access to saw off the vertical plastic spout - it is a one time procedure.
Be aware however that the metal pan uses a flat gasket and the plastic pan uses a O ring like perimeter gasket that sits in a half round groove in the tranny casing. Also the metal pan uses 21 shorter torx M6x22.5 metric cap screws for the perimeter bolts. The plastic pan uses longer M6x28.5 torx metric cap screws.
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