so this is for mk1 rabbits which include the pickups. personally I own a 1981 vw rabbit pickup and this works very well. the window cranks (the part that holds the window) likes to rust out on you. so for the fraction of the cost you can replace it with this! so what your gonna wanna do is make sure the mechanism is all the way down and you need to use some bolts to bolt the crank in place. (I was lucky enough I still had the old bolts) then carefully caulk the rim of the crank then carefully set the window in place. wait for caulk to dry before rolling window up!