I have searched for hours on here, Google, and some other forums, and cannot find what I think is probably a dumb question. I have the knowledge on how to measure the rod length in respect to the master cylinder, moving over the brake pedal bracket, and pretty much everything else. But what do I grab ahold of on the piston shaft to actually move it where it needs to go? The FSM just tell me to adjust it, but give no idea of HOW to actually do that. Anyone have a pic, video, something that could help me out? OEM booster in the truck (as far as I know), and OEM replacement.