26. Here you can see that the tubular ball-bearing guide (two halves) and its attachment hardware have been removed from the rack piston. All those ball bearings (we counted 26) allow the worm and rack piston to move on each other. If you've ever heard stories about rebuilding a steering box, it's probably the ball-bearing install that you heard people whine about. It can be a little tricky. Some boxes use two slightly different (color and size) bearings. If yours has the two, install them by alternating them.