Custom CNC / Fab guys

[Junkyard Johnney]

I have looked over your parts. First of all welding on the knuckle is risky buisness, that type of part has an incredible amount of force on it and the heat can weaken it. We used to weld and redrill 9" Ford rearend axle flanges and redrill them for our stock cars and never had a problem, but bear in mind we were on a track and not on a public road, liability and all that. From the looks of the flange you are wanting to use, 4 hole, and the knuck is a basic 3 hole there is not going to be enough meat there to drill your other holes, not all of them anyway. In addition to this the center shoulder of the mounting flange MUST pilot into the center hole of the knuck snuggly, this is what holds the upward forces and keeps everything aligned , a must. CNC fab from billet is way to costly because of the above mentioned comment, the size of the start chunk. I just purchased an 8" round piece only 2" thick rem from Ohio and it was $100 by the time I got it, see where this is going. Do not comprimise the knuck; take it to a machine shop and see if the mounting flange can be disassembled from the drive hub, wheel flange if you will, and have new billet mounting flanges made from the billet that will match your knuck bolt pattern and reassembled. That would be the proper manner to approach this one in my opinion. Good luck , interesting project.