Decided to replace the caliper pins on my 2006 Chevrolet Express 3500 van. Removed the caliper pins not paying attention to them. Went to put in the new pins and noticed one pin has 3 flat sections about 1/8-inch wide running along the length. The other pins has no flat sections.
Could find nothing in my GM Service Manual nor on an extensive google search. Did find that some Hondas have these, with differing views on where they go. Most often recommended is the cylinder pin (with no flats) goes in the hole near the leading edge of the pad. That is the pin hole where the rotor enters the pad as it is rotating forward. This is the top pin location when the caliper is on the front-side of the rotor, and the bottom pin location when the caliper is on the rearward side of the rotor.
So does anyone know where they should go on a GM vehicle, and why?
Could find nothing in my GM Service Manual nor on an extensive google search. Did find that some Hondas have these, with differing views on where they go. Most often recommended is the cylinder pin (with no flats) goes in the hole near the leading edge of the pad. That is the pin hole where the rotor enters the pad as it is rotating forward. This is the top pin location when the caliper is on the front-side of the rotor, and the bottom pin location when the caliper is on the rearward side of the rotor.
So does anyone know where they should go on a GM vehicle, and why?