Josh was that the *finger quoting (lol) "Bump Steer" kit seen here?
LFP Bump Steer Stabilizer Kit Ford Lightning / Harley at LightningForcePerformance.com - Your American Muscle Parts Depot that you're talking about?
I ask because today I had a weird experience, braking to a stop sign from about 50 mph, I hit a small bump and my steering wheel started to shimmy pretty bad. At least 1/2" back and forth until I slowed below 20. I have not seen this before, and could not induce it again. I put the truck in the air, and checked all the control arms, ball joints, steering joints, sway bar & bushings, lug nuts, both hubs, shocks front and rear, as well as leaf springs for good measure. Nothing felt loose or showed abnormal wear, though I did find my left front tire was about 8psi lower than the right front, but I doubt that would do this. The one thing I did find that was peculiar was with the tires off the ground still I could shake the steering wheel left to right about 1/2" (as it did on the road today) and the wheels where not moving. Maybe my steering box going bad? The alignment shop said it was worn, but not enough to replace. The tires are the Kumho's (I hate them, but will replace them when needed) 275/45's.
Sorry for thread jacking, but its still on subject...kinda.