Now offering Machining service for your 99-04 Super Duty Dana 60/50 to accept high steer arms. You will need to box up and send me your knuckle/'s and I will machine them to accept our high steer arm. Arm's are machined here in house on a CNC Vertical Machining Center. Knuckles will be faced down flat and drilled and tapped 6 places for attachment. Pricing will be $150 per knuckle. Plus shipping back to you. Should be around $15-20 each knuckle. Here are some pics of last one done. Turnaround should be 2-3 days.