What does it do? It's easy to hook the EGR back up, do I need to do anything else to make it work?
I got back to working on my truck today and actually made myself a list of what to do. There's a lot. I am definitely not finishing this by labor day weekend.

Got the window closed but no power to the radio still. I cut out most of the wiring for the engine and removed the ECU but i still have an error light on the dash that says emiss. I still cant get the stupid key out of the ignition either.

Can I use the fuel lines that are already in my truck, including this filter:
or do I have to replace it all and use that weird section of fuel line with the bulge in it that hooks to the engine?

Anyone know the thread pitch/diameter of the flywheel bolts and the bolts that holds the turbine of the turbo on (I dropped one and can't find it)?

So to mount the Ranger flywheel on the Mercedes I need to drill the new bolt pattern but the problem is the back tapers in to a ~2" flat spot for it to mount. The new bolt circle is larger then this so it will probably make it hard to make the flywheel sit flat. My machinist friend's thought was to mill a step on the back of the flywheel and then turn a tapered ring to go on it so that the back of the flywheel would be larger. I'd then get it welded and return it to him to machine it to it's final size before getting it re balanced. I'm a little worried about warping the flywheel. Would making a cone for the back of the flywheel be good enough if i got that balanced with the flywheel?

My friend remeasured the Mercedes bolt pattern for me today and the piece of plastic I bought to make the prototype adapter with came in. He's headed back to school in Florida so he's taking all the stuff and should be able to get all the machining done before classes start back up.