The first thing to do was to set up my BHB mod equivalent rig. In that I found the hardest part was just finding something to hold the pinion onto the drill. I used a 4MM hex socket 1/4 drive to do the trick. I evenly wrapped the hex side with rubber splicing tape a couple times to give it a bit of that spongy feel to it. Then I wrapped electrical tape over that a few winds so that it would snugly fit into the pinion.
I then used this drill and vise setup. The 1/4 drive side of the socket fits into the drill chuck no problem. The metal piece in the vise had a rounded end to but it is just used to stabilize the pinion so it stays rock steady which is important.
Then using BHB’s dremel technique, I shaved the hump down and tried to get the teeth 90 degrees to the shank as BHB states. This is the end result. I didn’t have a bearing on me at the time but I used this plate to illustrate how it more or less sits flush with the surface. I think this will work and if not I can shave a bit more off. Think I’ll wait until my Vanquish rear axle housing comes in so I can custom fit it. Though I am still having some trouble acquiring shims. Anybody know where you can get more 18x15x0.2mm shims?
I would like to thank BarHarborBasher for putting his videos and knowledge out there as well as everyone else on this site. I am open to any insight, tips or recommendations from the group. Thanks!