steering box worse after replacement

[chris989]

Hello all,

I just had my steering box while the truck was in the shop for a rear main seal. The old steering box was leaking badly from the steering shaft.

Now that the new box is installed the truck pulls left while braking and the steering wheel does not have consistent resistance when turning. It also feels loose like i can move the wheel from 11-1 o'clock while driving without much response to the tires.

With the old box the truck drove perfect. Straight as an arrow, it was only the leak that prompted the replacement.

Could it be a bad box, valve or air in the system??? All ideas appreciated.

Thank you,
Chris