Thanks for the reply

I want to use the IB5 box because of the ratios. And also it means not having to change the subframe. Its less of an issue to use the existing box and subframe from the van rather than change the whole lot over. You can use the flywheel and clutch out of the van/IB5 and bolt them onto the td.

I just need to know if there is a way to run the td and all existing wiring etc with or without the crank sensor?

What I mean is - will the crank sensor fit into the IB5 box or is it possible to run the engine without it?