Fixitmg
Member
I am working on a 5.9 magnum engine swap into my 77 dually with a 4 speed. And I have a few questions for the guys who have done the swap before. first question is I am guessing I need to use the original clutch flywheel. 2) pilot bearing, which one should I use, I am guessing again I need to use the original motor pilot bearing number? the motors are supposed to be the same but this crank is different from what I read, but is the pilot bearing holes the same? 3) when I pulled the donor motor out I found what looks like a crank sensor on the rear of the donor motor flywheel. what is this, I don't understand why there is a crank sensor when they use a distributor still. Hopefully it is for the trans input speed and has nothing to do with the motor.
please help
please help