CASE Tractor Steering Wheel. New Re-Production!! This is the 40 Spline Steering Wheel Case used throughout the 60’s. Most of the ’30 series, & some late 59’s used this wheel. We’ve looked at other Re-Production Wheels, & this is the best. A full 18″ in Dia. and weighs over 6 Pounds. The outer ring is thicker than the original wheel on our 730. It really looks nice. Lots of detail.