The Dewalt 14.4v Motor is in! Its larger than the titan but not much larger.
I quickly wrapped it up with Green Painters tape to protect it from dust or dirt got my dremel and some cut off disks and began cutting the pinion, I tried what others suggested and make two cuts on on top and one at the bottom and pry it open with a screw driver. but my cutting discs are large and i wasnt able to get close enough to the base of the motor, So I cut it sideways down the axle, this also was good as it began to smooth the one side of the shaft., after about 3/4 i was able to pry it open and then the entire pinion slid off easily.
Enlarging the screw holes in the Motor Mount took longer than i expected but, I was really trying not to rush it. so I just kept at it and it fit well.
I have a spare titan with and i removed the connectors from it and soldered them onto the brushes tab from the dewalt. I find the Solder used by Traxxas is very strong and has a high melting point. not sure what kind of solder this is (anyone know) the solder i have melts much faster and doesnt grab nearly as well.
Motor installed fine, I played with the gear mesh. tried to set the gear mesh by sound instead of paper. and its working well. Im using the stock 14pt pinion and 68 spur for now. I didnt need to add any spacers to the dewalt to make it work. I have some MPI Pinions with a higher tooth count but i dont think i could mount them on the dewalt without adding a 1/8" or more spacer so that it would align with the spur,
Didnt really get a chance to run it yet. when i tried very briefly i could hear the clutch slipping. so i gave it a quarter turn more.. i will try her out tomorrow and see