I'm lazy and I'd like to add Express window up and down to my 1955 and 1969 Oldsmobile 98 seem to be like that besides taking care of the lazy part that it would make the switches last longer too anybody got comments and stuff or has done such thanks

 

You would need to make a latching circuit with failsafes to enable this through relays or electronic means. You'll also need a way to bypass the mod if you want to partially open the window/s. You may remove some of the failures related to the switch but you're introducing other failure items and complication into what initially is a simple process of activating a switch.

 

2 of these should do it....
https://a.co/d/21AUkMB

You double have to use the inputs, but you could with a keyless lock system.

 

Most express-down systems use a module that runs the motor until the module senses a spike in amperage when the motor is stopped at the end of its travel while still trying to run. This may help the switch last longer, but it will put more strain on the motor. Modern window motors also have less current draw than early motors so you may have trouble finding a module that will withstand the operating current of your motors.

 

The module that Fleming linked to will only work with late-model reversing-type window motors that have a single winding; circa 1979-later. The window motors in most earlier models have dual windings; one for the UP direction and another for DOWN and they ground through the body of the motor to the door sheet metal. The DEI535 module can provide auto up & down for 2 windows or auto up for 4 windows. It controls the window direction by reversing the polarity of the motor which is why it is only compatible with the single winding motors and cannot control the dual-winding motors.

Like you, I wanted one-touch, auto functionality for my convertible project so I designed some custom adaptor plates to allow me to mount late-model, single winding motors to my earlier power window regulators. I also had to build custom switching and motor harnesses as well to connect to the DEI modules and used late model window switches to be compatible with the reversing motors. It was a very arduous project and I spent many hours drawing wiring diagrams and working out wire color-coding; but I'm very satisfied with the end result.

Here's some pics from my project.

Rodney

 

So, why couldn't you use one 535 for up and one for down?

 

Fleming:
That's what I did. I used one module for the front windows and another for the back. My pic above only shows the front module and the associated wiring harnesses. The lighter colored wires in my pic are the switch legs from the drivers master switch; they were wired through the rear switches before feeding the switch inputs of the rear module. Here is a pic of the second, rear module, which is mounted in the driver's side ashwell.

Rodney

 

Yeah, but you upgraded to modern motors. My point was that if it only does polarity for 4 windows, one direction, why can't you do 4 windows UP on one module and and 4 windows DOWN with the other.
I don't know, haven't used one of those modules in 30 years, and it was on newer motors.

 

That might work; I'd have to take another look at the wiring specs before confirming this. The module is still designed to reverse polarity so the early stock motors are probably still not going to work.

Rodney