• 100% USA MADE
• 33 Spline 
• 12mm x 1.5 Studs
• Bearing Unit manufactured in USA for/to ProAm specification
• Press in flange (multiple pattern) manufactured by ProAm to strict specification. You will not find a better Flange, Bearing on the market, period.
• 3.6" OD Bearing 
• 12mm x 1.0 SHCS hardware mount to arm
• TORQUE SPECIFICATION 

Compatible with the following hub kits;

• ProAm 930 Microstub "MS1000E/S" & "MS1600N" 

Compatible with the following stub axles;

• ProAm 930 - 33 Spline stub "MS1000SAKK"