Gear swap (broken teeth)

Can't say for certain that the chipped teeth won't be a problem but I don't think that it will. As for installing it yourself: I doubt that you have the tools and dial indicators necessary to do the swap yourself. There's quite a proceedure involved that includes a step by step process of installing, measuring, rotating, measuring some more, rotating the other directions, measuring some more, then checking proper mesh and backlash. Not a project for a solo first timer. I even bought a video once to help me with the process. After watching the video I took my new gears to a shop that knew what they were doing (if that gives you any indication at all). It's not as simple as replacing a part.

man with gears i would of just gone and bought a new set from summit. A set of fordracing gears are exactly the same size as stock gears. So with the setup you can use the Master housing dimensions and installing isnt that hard at all. How much did you pay anyway for these gears?