:prayer: Man....those stacks are wild! You will need a 3 speed wiper motor and linkage, plus a switch. I just snagged the same stuff from a member here to use on my 70 Duster with a 5.7 You mainly just need the crank arm that goes on the back of the 3 speed motor, and the piece of linkage that goes from that crank arm to the first wiper pivot. Try to get the wiring that's under the hood too if you can. The wiring under the dash is the same for a 2 speed or 3 speed motor, and the plug that hooks to the switch is made to fit either a 2 or 3 speed switch. That has been my experience in swapping 2 other A bodies from 2 to 3 speed wipers. Buy all new linkage bushings too....ALL of em! You can get em at the dealership, or off the Help rack at the local parts house. I've found if you replace all the plastic wiper bushings at once, it will save pitching a cuss fit when you get stuck in the rain! :violent1: Good luck.
