Brake caliper slider pins
I had the good old Super Duty front end shakes while braking.
I replaced the brake caliper slider pins & boots on all four wheels Yesterday.
I had a few that were pretty stiff and one rear pin that was stuck.
I bought Federal Mogul brand from Advance Auto for $52 OTD, best price I found on any brand or place.
I pulled the brackets off and polished the pin bores with a little flapper rod I made up with some 400 grit paper.
Lubed them up with Valoline silicon brake grease.
Torqued the lug nuts to 160lbs.
I did nothing but change the pins and the shakes are all but gone.