Description

When your three-point hitch starts acting like it has a mind of its own—implements tilting one way or the other, heights that won’t stay put—you’re dealing with worn rock shaft components. This is the heart of your hydraulic lift system, and when bushings get sloppy and seals start weeping, precise implement control goes right out the window. This complete 12-spline rock shaft kit brings back that factory-tight operation you remember.

What You’re Getting

Complete rebuild kit with all the parts you need to eliminate that annoying play
12-spline design that handles the power without slipping or binding
Category 2 specs perfect for those mid-sized discs, cultivators, and rotary cutters
20mm leveling box pin hole for proper side-to-side adjustment range
Quality bushings and seals that’ll keep hydraulic fluid where it belongs

Built for Real Farm Work

This kit fits the workhorses of many farm operations—those reliable John Deere 6005, 6010, 6020, and 7020 series tractors that handle everything from hay operations to heavy tillage. When you’re pulling a disc harrow or running a rotary cutter, you need implements to stay level and at the right depth, not constantly fighting the controls.

Made to Last

The 12-spline shaft delivers reliable power transfer while the precision-machined bushings restore smooth operation. Each seal is designed to handle the pressures and temperatures of hard farm work. The 20mm pin hole dimension isn’t just a number—it’s critical for proper leveling function without excessive play that causes problems down the road.

Good to Know

Before you start, make sure you’ve got the 12-spline design and that 20mm leveling box pin hole—some models in these series vary. Take your time with the installation and keep everything clean to protect your hydraulic system. Document how things come apart, and don’t rush the seal installation—getting them oriented wrong means starting over.