This YouTube video on how to service chrysler floating calipers is actually not a video at all, it is a filmstrip. Before training DVDs and PowerPoint presentations, there was the filmstrip. Watching one of these required that a person advance a strip of film through a projector when a beep was heard on the soundtrack. The beeps sometimes prevented you from falling asleep.

Typically, a filmstrip’s running time was between ten and twenty minutes. This film strip was made in 1969 when disc brakes were finding there way on more vehicles. The single piston floating caliper was less expensive then the four piston fixed calipers used on most domestic vehicles.

The video makes a great point about rotor runout and disc thickness variation. This was a new issue with cars in 1969.