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200Tdi Auto Conversion

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What's involved in converting a 1990 3.9 RRC auto to a 200Tdi?

I have the RRC (complete, but minus engine) and a 200Tdi/LT77/Rad/Intercooler/Exhaust (all ex-Disco, but still in the vehicle). Rad, exhaust & engine mounts are not a problem. The difficulty comes with mating the engine and gearbox (having not worked on a Tdi auto).

1/. Do all ZF auto's use the same bellhousing or are V8 & Tdi versions different?

2/. The Tdi flywheel will require replacing by a Tdi flex plate and torque convertor.

3/. Does the Tdi engine backplate (flywheel housing) have to be changed for an auto version?

I know about the cam in the ZF box which governs shift points, but what else could I have overlooked?

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