Rear Wheel Hub - 1 3/8 spline- 4 bolt

1 3/8"-21 spline  rear wheel 4 bolt hub
3/8" thick wheel plate

Standard Bolt Patterns on this wheel hub: 4 on 4, 4 on 110, 4 on 115

1/2-20 wheel studs

All 3 patterns are machined in and labeled, so if you change wheels later, you can unscrew your studs and move to a different bolt pattern