DESCRIPTION
- 4 pin design to ensure the hub wont spin, even with heavily modified S55s
- Laser scanned to ensure perfect fitment – direct replacement for stock
- Designed and machined in-house with our CNC mills
- Machined from heat treated 4130 Chromoly
- Machined by RK Autowerks
Compatible with all S55 M models, N54, and N55
we do not recommend the splined crank hub nor will we install them for liability purposes. this crank hub is 100% guaranteed