I was wondering i am looking to dyno my truck and i am going to use the guy that dynos my mustang but we are unsure where to get the tack lead from?

sean

You probably need to paint a reflective dot on the crank pulley, or use reflective tape and an optical tach, at least that is what is required of a 6.5, I don't know on a DMAX if there is an electronic 1/rev. pulse they can trigger off of, also need to check dyno setup, gasser dynos don't load Diesels sufficiently to get good/repetative readings

DOn't know if you have a 6.5 or dmax, but you can use the tach wire on a dmax. it is under the turbo outlet where the blue flex tube attaches. you might want to send Diesel Tech a PM as he has accessed mine there a few times.