The pw relay is above the right side of the steering column, under the dash. The only thing that relay does is make it so you have to turn the ignition key for the windows to work. It shouldn't even be called a relay, since it doesn't do what a real relay does. And it often goes bad, which prevents the windows from working. That's another reason someone might have removed the power windows...because they didn't know how to fix it, or couldn't find another relay, since new ones aren't available. Since the relay is not necessary, I always bypass it. There's a power wire that runs from the pw switch to the relay. I'm pretty sure it's a 12 gauge pink. If you cut and run that pink wire to a 12v constant power source on the fuse panel, the windows will work. And they'll work without the key, which is how p. windows used to work on older cars.
For the rear end ratio, the ratios available in that vicinity was 3.23 and 3.42, so likely the 3.42's.
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Steve F.
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