As you drive your truck for the next few days, make sure the steering wheel movement is very free in the straight ahead position. If steering feels like it is hanging or sticky in the straight ahead position, the adjustment is too tight. Too tight can also stress the worm gear drive assembly that interfaces with the ball nut.
The adjustment you made sets a minimal clearance between the sector shaft and the ball nut and this adjustment must be done with the steering gear centered - not necessarily the steering wheel centered. When done properly, a preload will be established between the sector shaft and the ball nut with steering gear centered. When the steering gear is turned either left or right from center the preload will disappear and the clearance will grow. This is normal.
Usually, this adjustment is done on the bench and the drag is measured with an inch-pound torque wrench on the steering input shaft to establish the correct preload as the steering gear passes over center.
It is fine to make the adjustment on the truck, but one must remember there is no real feel for the proper setting because the steering wheel input and the pitman arm output (with associated steering linkage) will mask the feel of the expected drag when the steering gear is passing over the center position.
You may already know this..., but, just in case you don't.
- John