How I exploded my D-type Overdrive: https://youtu.be/ejm2j5Fo8Fg This video is a quick reference in some of the differences between the D-type and J-type Laycock Overdrives used in the Volvos of the 1960s and early 1970s. As well as some Triumph cars of the same vintage. My old D-type M41 rebuild video: https://www.youtube.com/watch?v=dfvx_-xGpBw Useful info on the J-types: https://www.buckeyetriumphs.org/gearbox #DavidBello #VolvoAmazon #OverdriveTransmission