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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2005 Posts: 5 Junior Member | | Junior Member Joined: Sep 2005 Posts: 5 | I'm trying to locate some info on how, parts availability, etc. on changing my 64 GMC stepside over from single speed wipers to 2 speed wipers. I'm thinking that all that is needed is a switch, motor and the wiring between the 2 units. What have people used for doing this or what other vehicles came with the 2 speed wiper set up that I can get off of? | | | | | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | All 66 had 2 speed(fed regs), you need the motor(same til 72), switch, & small harness w/two extra wires. Get a rebuilt motor from Advance, tell them 2 spd & trade in your single(they can't tell the diff)as a core. I have sold the extra setup I had, but there is a yard locally that has more I'm sure. I added 2 spd wipers to both my 64's, you can get washers also w/this upgrade. Brian | | | | | Joined: Sep 2005 Posts: 5 Junior Member | | Junior Member Joined: Sep 2005 Posts: 5 | | | | | | Joined: Apr 2005 Posts: 926 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 926 | Does that apply for adding 2 speed wipers to my '62? Seems like a lot of stuff changed after '62.
Speed | | | | | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | I think its pretty standard as they were option all years 60-66, but I have seen a '60 that used a diff style motor, not sure if it mounted the same or not. The 2 speed seems to give you too slow or too fast.  Switches seem hardest to find. Brian | | |
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