I would not buy this part again
There were so many fitment issues with this kit. I bought it with the parking brake kit and Wilwood put bolts and nuts where you have no access to them in the installation after the axles are installed. It is essential to have axles (either race or stock) that have a large hole drilled in the flange to allow access to the 4 nuts that secure the backing plate to the housing. It also shipped with the wrong bearing spacer (ordered 57 Chevy kit, shipped from manufacturer with smaller 55 spacer). Speedway made it right, but the overall quality was very poor.