transmission · FF-0202

How do the shifter detents and park lock work inside a Turbo 350?

Ed shows a spring that holds the shifter positions, and the shift lever, which moves a long manual valve up and down inside the transmission. In park, the lever runs a second long lever down, and the spring goes back in and locks the transmission so it cannot move.

Expert

Ed Smith

Evidence

expert attributed

Component

shifter detents, manual valve and park lock

Applicable scope

GM Turbo 350 automatic transmission on Ed's bench; general transmission knowledge, not specific to the Flathead