A vehicle, such as off road vehicle, includes a plunge pin assembly located in a flexible joint, which maybe actuated without tools to decouple and thus remove a driven system from a driving system. The plunge pin assembly includes a plunge pin biased to an installed position such that a clip of the plunge pin assembly retains the driven system to the driving system during operation of a vehicle. The clip (e.g., circlip, snap ring, coil spring or crest wave spring) is circumferentially contractable and expandable. A transfer element cooperates with tapered and recessed contours of the plunge pin to permit the aforementioned actuation of the clip. Movement of the transfer pin along with contraction of the clip allows the driven system to be decoupled from the driving system. The plunge pin may include a head portion positioned at a desired distance from a drive axle of the driven system.